I'm trying to figure out a good project amp to use with these chassis

Sometime in the dim past I bought a pair of Audimation CPA 1 amps. Never heard of them? Not surprising, no one else has either, when you google them my own question on Reddit asking if anyone had heard of them comes up first. Anyway I bought these so long ago I forgot I had them until I had to move! These are monoblocks, sturdy little buggers at about 20 lbs each.

I've been using them on my bench doing speaker measurements for the last decade or so but they're getting kind of flaky, sometimes there's a big offset on the input, other times the bias is way off, typical stuff for old amps. So thinking I could repair them I took the cover off, and luckily for me there was a schematic inside. It turns out they're a pretty basic quasi complementary design, not really worth spending much to fix.

So then I thought I could use the chassis, heat sink and transformer to make something more up to date. The biggest problem I see is that the 2 output TO-3 transistors are on opposite sides of the chassis which means I'm looking at pretty long leads for at least one of the transistors.

Anybody got any ideas on a good use for these amps? I'm open to suggestion.

Schematic.jpg
20221224_112049.jpg
20201221_145557 small.jpg