Limit forum usage

[TheComputerGuy]

Hello everyone.

I want to create a For Sale Forum for my members. I want to make it where they must have 50 posts in it before being able to even think about posting there. That part shouldn't be a problem.

Then I want to have a credit system. Everyone on the site gets 1 credit per 1,000 posts they have. You use that credit to post in the For Sale Forum. If you don't have 1,000 posts then you are given the option to buy a credit for $3 each.

Or

I would like to sell memberships where as a member of X group you get X amount of credits per month for X amount of months

If a user gets the credits and does't want to use them they may give them to another user as well.

Is this possible with anything already created or would it have to use the vBux,vbPlaza thing modded?

Thanks
Chris.