Just read through the whole blog, great job so far. I'm starting something similar, but I'm going to lower mine.
http://67-72chevytrucks.com/vboard/s...=1#post8055452
I really like the solution for the firewall. Once I get to that stage I will be doing a ton of measurements! What other major issues have you run into so far that I need to keep in mind while doing mine? Just looking for some input.
Thanks in advance!