Thanks for the warm welcome!
I'm not sure who the maker is; I grabbed a dreaded "ebay" kit. This one seems to be made of ABS (it's pretty flexible), and it also seems to be a ROTJ mold (the details aren't super crisp). I got it for $300, which I thought wasn't too bad a deal, but this was literally a week before the Anovos one went on sale, so I was kicking myself for not waiting. The kit came with literally everything, from helmet parts and all the armor pieces, down to decals, lenses, and cover strips. The only thing it's really lacking is a canvas belt. I don't think the guy I bought it from made it; probably just couldn't fit into it (the legs are a little tight for me too).
Also, I'm trying to go a super-practical route for the armor while still adhering to the 501st CRL, so most of my kit will be held together by elastic and velcro, enabling me to don it by myself, and allowing any future owner to resize it for themselves. The part that's got me stumped is how to keep the calf/thigh pieces from being too tight; suggestions? They seem to barely fit when I hold them on my leg...
Aside from the belt being plastic, I'm also using an eFX helmet, so I'll have to make some mods to that to get it CRL approved as well.
As for boots, I was thinking of jumping the gun and grabbing some TFA TK boots from Imperial Boots. It looks like the Rogue One TKs are wearing 'em, and I'll be able to use it for a future TFA TK when I get the kit. (I know, not on the CRL and not even confirmed if the RO TKs have 'em yet; just looks to be that way.)
For now though I'll settle for some cheap chelsea boots if I can find them, but since I have such little time till RCCC, I'll probably just have to kick it in some white tennis-shoes...
Oh, and I don't have a neck-seal yet. Basically, it's coming along, but isn't quite up-to-snuff yet! Soon though.