Okay,
@BoogerMan, Ive relented and done this adapter so it could be made with titanium. If you want to forward it to your guy, if he has any questions, Ill call him.
This actually may end up working better than glass for a couple of reasons. First, it should hold heat better after it heat soaks and thats cool and everything but the big thing here is you can reconfigure it.
I dont think that a male configuration will work right here. Ive tried it and it really concentrates the heat into one spot. The female setup works much better. But, you could unscrew the bottom of the adapter that in my sketch is a female and replace it with a male if you wanted and you could change joint sizes as well. Doing this with a 14mm inlet would get the heat closer to the herb too.. I dunno how much of a difference that would make but maybe some.
Im picturing a small middle piece, just big enough to hold the screen and be threaded on both sides.