4 hrs - Trunk cubby, fit DS aluminum, fit rollbars
Used a 4.5" hole saw to cut the cubby opening on the rear cockpit wall. Screwed the aluminum to a 2x4 and everything went smoothly. Most builders seem to use a 5" hole saw, but I had a 4.5" on hand and actually like the opening size better a tad bit smaller aesthetically. I also spaced the cuts so the opening is 14" wide. I wanted the opening to fit between the seats, not go behind them.
Fitted rollbars. It really helped to put a thin film of grease on the mounts. Drilling the holes was not as difficult as I thought. Just made sure to start with a small bit then work my way up to the right size. Just make sure to pull the diagonal bar up to mount tight with the hoop before drilling for the lower bolt. (I did on first one but almost forgot on the second!)