Excellent work and dedication to problem solving all the pitfalls of a project like yours.
I have one suggestion for future projects: Instead of using zip ties for electrical wiring harness staging I find the velcro wrap ties work well for me on any wiring project, and there are no razor sharp cuts when one snags the cut off end with one's hand. AND, they allow for repositioning, reuse and the addition of more or reduction of less wires as needed. And one can do the tape-over thing like you did instead of using the wire loom plastic sheathing to cover/consolidate and look professional too In some long run areas you could also use the same braided sheathing that is used to protect hydraulic lines from abrasion. It comes in different diameters and lengths from the hydraulics 'stores'.
And one other thought would be to spray Kroil down each cylinder before even trying to crank an old unknown condition engine over. Shoot some down the spark plug holes and let 'er sit a few days, then crank it over. If somethings stuck it could make the difference between a ring breaking or scoring a cylinder.
Now go get that other field gem-you know you want to, and start on it too!
Oh, yeah, I'd put some real cloth breathable covers over your other restoration projects - otherwise trapped moisture can do much damage to all kinds of surfaces inside and out - JMHO.
Also, you may not consider yourself a mechanic- but I would have hired you to work in my shop anyday! ( previously owned and ran foreign auto repair and sales shop for over ten years- then sold it).