Use the camaro oil pan, the corvette winged one wont fit, and the truck pan is too deep. For what it's worth, there is not alot of difference between the LS1 and the LS6. The LS6 block is a refinded version of the LS1, and has better heads. There is no difference in the way the 2 trigger and the sensors are the same (he's confusing the LS2 with the LS6). Please visit www.LS1tech.com and do a little looking around. There are a couple of UK guys over there. If your looking for bolt on headers that fit then the only game in town is JTR. They also have a good cooling solution. Speartech makes great custom harnesses.
Hey, if money is no object then go for the LS7 in mid summer! It's a 427 small block at the 500 hp mark!