Stock ! Just wait until you get the cams and valtrain configured and then get the p28 ecu modded. That will be the best way to leave your bank happy.
You can get it programmed but it can cost you an average of 150.00 to 250.00 to get it reprogrammed for what ? I mean you will gain a few hp here and there but then you will have to spend the same amount of cash when you have to reprogam it again for the cams.
Thats my opinion.