There are some really great vendors out there that cater to native and western role-play. If you are looking for things to wear please feel free to look them up on Market Place. Click the picture to go to their store.
Timber Creek Outfitters sells western and native clothing as well as buildings, accessories, weapons, home and garden items, textures and much more. It is high quality graphics created by a graphic artist. You won't be disappointed.
P373R Kappler sells weaponry. The creator of the WW Meter System. He has guns and other weapons as well as items to help you improve your shooting.
Say Yes sells western and native clothing including clothing for children.
Native Spirit clothing for women and native RP accessories.