In my personal opinion if I have a friend that has a bussiness and lives from it I will actually try to help him and pay full price or maybe a reasonable discount but never dealer price. Friends are to help friends... But maybe that is just me I guess... I try not to ask for discounts from friends, less from a $600 dollar bill...

If it is just business try to get the best price you can get, that is just business...

In terms of a refund, that should be between your friend and you, by going this way (RCU) your friendship will probably end very fast... Too much coments when the final desition should be only yours and what your morals say...

Michel