I'd have to say that I agree with Clouded Vision, I'd also recommend a medium size bong with a honeycomb disc. Since you said you are worried about restriction I think a single honeycomb disc will be good for keeping the drag/restriction to a minimum while still giving good percolation/smoothing of the vapor. Turbine discs are also quite often used as an alternative to or in conjunction with honeycombs. The difference is that honeycombs has lots of small holes whereas turbines have larger slits from near the centre of the disc going out to the edge.
This disc shown below is a honeycomb.
This disc shown below at the top is a turbine.
One thing to consider is that although more discs will smooth the vapor more they will also increase drag/restriction. That is why I only recommended a single disc originally, but if you decide that it's less of a factor than the cooling you may want a double honeycomb, double turbine or honeycomb turbine mix.
A height of about 14 inches will mean the vapor is well cooled by the time it reaches your mouth and lungs without too much loss of flavour, also this should mean it's a comfortable volume for you to fill with vapor and clear easily.
If you want something to last then although it will be more expensive I'd recommend a good quality USA made piece using Schott glass. Schott are glass manufacturers that produce very high quality glass tubes that is free from defects like bubbles and impurities that you may find in other cheaper glass. This means any bongs made with Schott glass will be stronger than others.
If you look in the right places you should be able to get a single honeycomb made with good quality glass and produced in the USA for about $120. For a double honeycomb or honeycomb turbine combination I would expect to pay around $140. Those prices quoted were for 14 inch size bongs.
It might be worth noting that the lattice bongs made by Leviathan/M&M tech will perform similarly to a honeycomb, their cheapest one is a fair bit more expensive at $200 plus shipping and being 16 inches in height it may be too large for you. Please ignore the showerhead ashcatcher in the stem as that is a separate piece.
As you can see the lattice is rather pretty but you certainly end up paying for it. Although compared to a brand like mobius it is still relatively cheap. If you are looking for more functional glass without the price tag I would recommend both
JhanPixel and
Colie Glass. Have a look through their stores that I linked and see if anything catches your eye.
JhanPixel has only recently switched to Schott glass so he's phasing out the stuff made with the cheaper glass which had the odd complaint about having bubbles in. I'm not sure if you offer to pay more if he'll give you a Schott piece as I imagine the production cost will be higher for him from using better glass. It's worth noting that JhanPixel's prices include US shipping(You'll have to ask him for interanational rates) and he offers 10% off of anything that costs over $100 to FC members. For example his 13 inch
double disc wubbler may be a good fit for you would cost $140 inc. US shipping.
All of the
Colie Glass pieces are made from Schott glass as this is the only type of glass that he uses. Colie Glass offer 20% off all prices to FC members and quite often free shipping. For example this 14 inch
Inline Honeycomb seems to fit your needs and would cost $140. He is a quite willing to adjust pieces so if for example you wanted to get the stem angled out to be more compatible with the LSV WPA or the single honeycomb on it's own without the inline perc underneath it then I imagine he'd be willing to do that. You can ask him any questions using the contact seller button on his Artfire store that I linked.
Another place to consider is
Glass Blowers Direct as Clouded Vision seems very happy with his piece and you can see a video of it in action on page 123 of this thread. I'm not sure what glass they use to make their pieces but Clouded Vision might know or otherwise you could ask
Sam at Glass Blowers Direct himself.
I guess what I'm trying to say is don't be tempted by the cheap Chinese made stuff like Cheech as if you're willing to pay just a little bit extra you can get some nice USA made stuff. Also if you ever decide you don't want it any more it'll maintain it's value better and you'll be able to sell it a lot easier on this forum.
I hope all this useful as you can probably guess it took me a while to write but I'm always willing to try and help a fellow FC member.