would only work if buying in full and would still require a messy title transfer and taxes when he gives the vehicle over.

the best way would be to have the non-buyer do the first part then the person that actually wants it does the second.

that said, it would still probably give you a big hit to your credit score unless buying outright. if you can afford to buy the cat in cash you probably don’t need to be running two man cons for a discount in the first place.