Payment plugin, pay first to order

[agalloch]

Hello, my english is Pretty terrible so i better try to explain what i am trying to do and what i need.

I have website based on Joomla with Virtuemart eshop.

There are items that are stored in repository (i have them already) and there are offered items that are not in repository yet and has to be ordered first to be delivered later to customer.

If someone orders item i have already, i can send it without problem so i have no problem to use the payment option Cash on delivery.
Problem is, when the items are not yet on the repository so i have to order it too. I need to disable option cash on delivery on this option and ADD option "Pay first" something like bank deposit.

Could you pleasy help me how could i do that? IS there such plugin or module i could use, so i dont have to use my money to order stuff to customer but i can use money of customer from bank deposit to order what he wish.

Thanks in advance!

[GJC Web Design]

you need to have the payment methods check the stock in their "conditions" function (if that is how you tag what u have and have not in stock)

What about a mixed cart? If any prod out of stock ask for payment?