Stop in for a cup of coffee

A new member on here has some interesting parts for sale... I'm trying to get some of them from him, one of which is a set of 318 valve covers...

We've been going back and forth in PM for the last few days as I forgot one other item that I was interested in, then the shipping cost he quoted me was for business, and my address is local... Now he says the shipping is 15% more... So that brings the shipping up to $70 for $120 in parts.... A 67 Barracuda tail light assy, a 66 Valiant owners manual, the valve covers, and the alternator brackets...

So today I see that he has the whole 318 for sale and the pictures show the valve covers that I'm trying to buy... If someone wants the engine, who's going to get the valve covers??? He only takes money orders and it will take 4 - 5 days for the money to get to him... If I send him the money order and someone buys the engine, will I get stiffed on the valve covers or will the other guy get stiffed on them???

I'm starting to get cold feet about this and may just let it go...