Well ... If you were brave enough to do it

Id only sell to someone with lots of feedback and 100%

I would ask for a non refundable deposit to be paid within 5 days of the end of the auction

Id make them bid along with everyone else cos you may end up with someone else winning who will pay you outright

Then i would set terms when payments should be sent by

If they miss two payments then the sa,e is void you keep the deposit

If they pay it all off then you send item
It sounds easy enough but im like you i wouldnt do it on evil bay ... id do it on here .... cos i know most of you ...
The point of evil bay ..... and correct me if im wrong .... is that its an auction site .. you bid what you can afford or you dont bid .... you pay as soon as is required after winning ..... its not the co-op or a christmas hamper site .... so why ask to pay bit by bit??
Jules xx