I rummaged around and still couldn't find a bucking bar that would fit to do the rivets on the inlet bottom baffle. I finally ended up using a thin piece of metal with a big block of steel duct taped to it (the thinner piece wasn't heavy enough on its own). It was a little tough to control and keep it from slipping off the rivet, but I went slow and eventually got it done without mangling anything.
The baffles went on yet again, and I trimmed them back a little more to match up with the lower cowl.
The cylinder 1 and 2 side baffles get bent on the bottom to wrap under the bottom baffle.
The 90 degree corner between the bottom and side needs a conical gusset to help keep the incoming air from leaking around the front. The rubber baffle material will wrap around the cowl lip and lay on top of the gusset. This sounded easy, but turned out to be a real bear. The aluminum thickness called out makes forming the shape really difficult. I spent a few hours working on my first attempt, but ended up scrapping it. I'll have to try again with a new technique.
