When the car was broken, the rear pivot bulkhead was broken. The pivot pin was missing, and somewhere along the line, the suspension arm disappeared. Several years ago, my brother was working at a place that had a CNC machine, so he took the suspension arm in and they made a pair. They've sat in a box till now. I wasn't even sure they'd work, but as you can see, they do pretty well. One of the pivot pins had to be pressed in, but other than that, they work fine.
Starting point:

The replacement parts:

And the one-off suspension arms:

My handy instruction manual:

Apparently my buddy had tried to glue things together, I had to scrape gobs of hardened epoxy off the chassis plate and rear of the front diff housing:

The finished chassis:

And with the wheels on. if you're familiar enough with the original Lazer, you can see where I'm missing the shoulder washer/cover and the nut/set screw for the center clutch.

I'd get new wheels and tires if I was going to run it, but I still have a few other things to work out - batteries and chargers and such. It could stand a new body as well, and it has no wing unless I have a spare in the parts box; I haven't checked.