Hi there and welcome.
RKD and Arkady are indeed 2 different people. 
RKD has sadly passed on but his kits are still available. The moulds went to Faraway creations/moncal. If you google either name you will find their website and Etsy store. Villianworks on this forum at one point was a sales contact for them. Unsure if this is still the case.
Arkady does awesome flight suits, vests and pouches.
I can empathise on the needing smaller armour as I have this same issue. My chest armour is boba maker which is a great fit. Same with helmet I needed a smaller one and got that from boba maker.