91 3vze exhaust/header Q

91 3vze..my exhaust guy said he had a template for headers the other day. so i took the truck back out to my exhaust guy, and he said he was lookin around for the template that he had for the v6 headers that he made but said he cant find them. i dont wanna spend the cash to have him make a full new set ($250 he said), and dont have the cash to buy a set anywhere else. we were lookin under there and he said he thinks he can take the crossover pipe off and use the flange and run a pipe back for the pass. side, and then basically do the same thing on the driver side, and run 2" or somethign duals all the way back. i jsut thought i would ask around and see if anyone has any experience or knowledge on it. from what ive looked at, it should be fine...and would probably save some of the heat on my floorboards and the engine up there on that corner. thanks in advance guys.