Measure twice , cut once... or in my case, measure lots of times because I can't remember what the number was the last time I measured it...
I discovered on Saturday that there is a lower firewall brace on the Prius v chassis that would interfere with the lower portion of the kick vent chamber pieces that I was fabricating. You can see where the Firebird body scraped by them when it was dropped onto the chassis the first time.
So, doing what any red blooded engineer would do, I revised the design to go around them. Saturday was spent fabricating the revised parts out of the old ones. I also created drip gutters to go over the kick vent opening, (something Pontiac should have done to begin with to eliminate kick vent water leaks.)
Sunday was final fit-up and welding day.
Next weekend will be seam sealer and primer weekend, with any extra time going back to scraping out the rear wheel wells.
Bill the Engineer