You should drive my car now that it has the BBK. The top end is a lot more fun, but you get to keep all of the midrange
Fuel lines are not needed, there's guys making 700whp on the stock lines and dual fuel pumps. Stock regulator too. Thats money you can spend elsewhere
2.3/37r you're going to be in the same boat as your dsm as far as reliability is concerned. If you plan on doing that I say keep the 1g, its cheaper to fix.