Ok, some updates for those of you who care...
Goal: make car usable (ie, keep the drum rears and not upgrade to discs, and no a v8 will not be installed either.)
So, New Odyssey battery has been ordered (the one from 1986 has given up the ghost)
The gas tank was drained - it was, nearly full tank (which is good and minimizes the risk of internal rust... it smelled pretty funky, but had nearly no shellac/slime/sludge. Thank you dad for putting in fuel stabilizer!
The Rear drums were removed, both rear brake cyl shot (the little rubber thingie was crumbling and dry white powder came tumbling out - not THAT kind, the aluminum oxide / dried brake fluid kind.
Poking into the Master, slave & clutch cylinders - they gunked / slimed / melted the rubber pretty well, and so were replaced with new.
Front Right disk was frozen (and needs help - not sure if can be rebuilt, so an early replacement caliper set found and ordered - I haven't gotten to the left front yet.
The Front solex carb was removed and cleaned and is deemed "good". The rear solex, well the carb choke is frozen. Solid. Not sure it can be taken apart to be freed so an early carb set was located and ordered.
The clutch was bled & now works again.
Still to do: Finish rebuilding / reinstall the carbs. Check driver-side caliper, flush brakes, flush fuel lines.
For those of you who want pictures, I have a few (and a few movies too)
Google Drive library of photos and videos
In the library, you'll see the period-correct narrow-gage headers (thank you BSR), and the Sempereti tires (from Ireland) are still deemed healthy (?!) mounted on American rims (from Japan)
And for those of you who have pedantic tendencies, the state of Colorado has declared that this car is a 1970, based on the mfg build date (that's what they could see when they did the vin check). Go discuss among yourselves - I'm not arguing it with bureaucrats.
<'flame on/>