but the problem for me is, i need to buy the bird cage perc from my supplier, i do not make the perc myself, i buy the perc from my supplier and then make D-020 myself.
so all these ideas is based on what kind of perc my supplier currently have
Sounds a bit strange, though, because if he's making these pieces himself, then we would also assume that means he makes the
YQ-42, and if so surely he already has access to the perc we asked for since he can't make the YQ-42 without it. Heck, the fact that he does assembly "himself" should make what we asked for easier, not harder. We didn't ask him to source or make some new perc, oli made a pic that clearly showed it came from one of his existing pieces, so either he didn't recognise his own stock or there's still a bit of a language barrier going on here. Maybe he's only using "down" perks for this application, already attached to a stem and dewar joint? The Faketrix looked like a pre-fab "up" type. It could be modded into a down but you'd still have to plug the bottom, cut the top, cut a stem to custom length and weld on a dewar joint, which is a lot of extra work per unit.
Oh well, see if you can get him to send you photos of the perks he
can use, and we could have a poll thread on them or something and link him to the results. If there's a lot of votes for a clear winner it'll probably inpire him to get it made...