Its hard to say. Not really supposed to discuss that topic on these forums. You know how the saying goes, they are worth what someone will pay or what you are willing to sell for. Supply and demand. You could look on ebay at similar items or even list them and hope for the best. If you have access to the BST forum you could possibly get help there. From what I can identify you have a vintage kyosho lazer zx motor mount plate and side plate, upper deck mount, suspension mount blocks and c-hubs, plus a rear shock stay. those are probably the most in-demand. you also have kyosho tf2 tf3 sub chassis mounts and motor mount plate.
this is a link might help
http://www.pargustore.com/