Tokens Plugin (Sell obsidian for tokens / other currency)

Hello,
Would anyone help me to find a plugin that would allow me to exchange obsidian with tokens?
VirtualTokens and TokenShop plugin both don't work with 1.8 versions and I didn't want to pay for VirtualTokens.

Does anyone know of a plugin that may do that?
It can be any plugin or combining the uses of 2 plugins or something.
All I need to do is sell obsidian for a different currency(tokens) and buy special items with these tokens.