Dougie isn't doing anymore mesh suits and that was mainly due to the fact he couldn't get any #280 hair blends in his area and was expensive to import. But plenty of people are still making mesh suits. berzerker's Snoova is a mesh suit, RIVETHEAD's Tarful is a mesh suit, even Firebird's Chewie and Lumpy is a mesh suit.
As far as Gungi is concerned JediMasterMark (Legion Membership Officer) overwrote what Wookieewannabe (Legion Costume Judge) by posting this:-
"Height: not an issue, moving on.
This particular, unique Wookie will follow face character standards - more exacting detail and reproduction of items/costume are vital for approval. Unless you're doing Gungi, you can't be a 5' tall Wookie. Nor carry a lightsaber"
I may be 186cm but I am doomed by 30cm each way I go, but a minimum height not been a issue, (mainly because there is a legal classification and hundreds of slur names for the type of adult who can be 5ft or under, also note Jawas and Ewoks don't have a minimum height standard), but to ensure that I'm not exploiting this I will be doing a 7ft wookiee. Doing Gungi just adds more variety for people mainly want to do Chewbacca and Tarful, plus been part of a lightsaber duelling club I really want to do a wookiee where I am unhindered by those stilts.
As for the bowcaster, I don't have any plans to make one, for after my expirence in the Rubies suit, most of the time the bowcaster will be in your way when people ask for photos, it will add on more weight for it is nearly impossible to get the original Barnett Commando Crossbow. Plus there is only a few scenes in the film where the bowcaster was in viewed, but there was more time viewed with the converted MG34. Just something to consider.