I doing the exact same build right now. I have some questions on the radiator. What hoses did you use? Did you have to cut your hood support? Is your intake 4 inch? I don't have much room so im hoping the intake i ordered fits.
I had to cut this supports that stick forward off the firewall, but not the firewall and did not have to cut the tunnel. The headers are just cheap stainless steel. LS swap headers off of Amazon. They are the ones with the van clamps, and the extensions for the O2 sensor.
Thanks for watching! It wasn’t a lot of fab work. Some bracing on the fire wall had to be removed, radiator moved, motor mount and transmission cross member kit.