Hi tcarnell
I don't know if you could fit chrome trap as you aim to do but also out of sight put a Hep Vo waterless trap( if you are worried about trap loss and smells) also in the line.I'm probably going to get shot down in flames with this post by majorly missing something.Just a thought though.
Maybe if the trap is being lost there is another problem like run too long or syphonage?
First item, first page of google, click on to products, waste traps, sorry not C/P, but why not ask them if the do such a thing or else fit an AAAV in the line somewhere