85 crew cab dually and 01 silverado donor truck?

[lkefthrlkeson]

Hey guys, I've been looking at doing a lq4 swap to the dually and I had a few questions. My dad has a 2001 chevy silverado 2500 with the lq4/4l80e that he's willing to give me. The engine and trans will need a rebuild, but I was planning on doing that anyway. Just wondering what other parts I could use? Will the gas tank swap over, will the seats fit. Figured swapping the gas tank would save me a lot of trouble. Thanks