Although I'm the Drivetrain team lead and I have plenty of parts to make for my own subsystem, I also happen to be the most experienced fabricator on the team and the best welder. Winter break is always our first flurry of work time.
That front bulkhead (the one with the square tubes) is a bitch. Took a lot of work. The rear engine mounts needed to be perfectly aligned, and even more troublesome, the holes drilled in it needed weld in inserts that then got drilled out on the mill (make sure everything was properly dimensioned and in the right spot, and the mill was the easiest and best way). Long days of work today and yesterday, and a full week ahead.