Depends, T-Shirts are usually about 8800 or 9800 yen, about $80 these days. Some of the jackets I have seen for $1000. There are probably some others on here that give you a better idea on other clothes they sell
You can only buy the gear from Span's shop no online sales. Which is nice if like me and Nico you live on the other side of the world
there is a store in San Diego that sells Bounty Hunter clothing Commissary 803 F St. San Diego, CA 92101 (619) 237-4457