Here's a Concept Art:
By setting a value of 0 (which is currently not allowed) the system should then change the "Purchase" button on Account Upgrades to "Free". There would be no redirect to Paypal or any of that.
This allows us to set up a Free Trail item by say, setting an item for free and making it last 7 days.
However, there is also no restrictions to how many times an item can be bought and so this means a user can potentially give themselves free trails indefinitely, which is quite pointless for my purposes. So a new option would have to be added that restricts Purchases to one time per account.
If anyone out there is willing and able to do this, I will pay you for your services and you can keep the code and redistribute it here on the RM for free or paid as you see fit. I only ask that the version I get does what I need, is unbranded, and I get to use it on any of my websites both present and future as I see fit.