Can't comment too much on the printing issue other than to say I've sold prints (OK, one print) that was done from a scan and printed on 'proper' paper using a lightjet printer.
As for paying. I've used Paypal for payments other than ebabe sales and it's easy and convenient. There's also a way you can get the buyer to pay the fees if you want to do that. But I'm not sure I remember how. I kow if you can get the buyer to pay you as a gift then they will pay the fees and if they pay from a linked bank account or from their Paypal balance then there won't be any fees on either side. Worth checking out the options anyway.