Here's the pics of my progress for today. As I mentioned earlier, my jigsaw and I didn't exactly agree on where the cutlines for the cabinet should be.
The first pic shows some errant saw lines around the curved part of the monitor area. There's just no way I could find to cut this without freehanding the jigsaw... and as you can see, I'm not all that skilled at controlling the jigsaw. Sometimes it cooperates... most of the time not so much.
I resisted the urge to finish the cuts and figured I'd try filling them in with putty later. The second pic shows the same bad cutline filled with Bondo and sanded. I'd never worked with this stuff before today. I kind of just globbed it on there... waited for it to dry and sanded, sanded, sanded. Overall... not so bad. I may need to touch it up again later but I'll wait until the T-molding slot is routed.
I didn't discover my big gaffe until I sandwiched the two cut cabinet sides together and realized I was off by 1/2" on the angled back of the cabinet on the second side I cut. Somehow, I misaligned the guide before I cut the line and didn't realize it.
I really didn't relish the thought of recutting the cabinet side so I've tried to fix it by cutting a 1/2" strip from scrap and Gorilla Glue-ing it to back of the cabinet side. I let that dry for a few hours but wasn't convinced it would survive routing and the lateral pressure that the T-molding spline would assert.
To try to provide some additional support, I've attempted to drive some finish nails along the edges of the cabinet side to hold the strip in place. I don't have a lot of room here, because I have to keep the nails away from the T-molding slot. I predrilled a hole and then pushed the finish nail in with my finger. After a few taps with the hammer it was in, and then I countersunk it just a bit using a punch so I'd be able to sand it without hitting the nails.
I think it should hold, but I'm a wary of the slot cutter bumping any nails. I've tried my best to keep the nails away from the router slot. It's not the best situation, but it should work out OK.
I've finished cutting, and tonight I clamped both sides together and sanded everything down to match. Next steps are to cut the T-molding slots, and build the base.