just read again your other replies, hes asking 1 x then another later seems better, still go round a few (bigger priced ones, and get him to sign he will not go back to these peopleat least for min of 12 months.
it does happen where people sell rounds then go back over them, I personally try to cover that, because I dont like having to go back and take it out on people for trying to con me you have to cover bases as the later gets you in trouble.
Ian