Not to mention, I think
@Jonny69 is doing everything right here. I've been here long enough to see the impulse to go straight for decoration / finition / tarty ness about frames. He his keeping a sound level head with this tip find. And learning a lot.
Nothing is won or lost until (except putting in some time wrenching investment and critical parts to actually get a understanding of what you acquired) and marking a key check point early "is it worth it?" Do I actually want this in my fleet and will it give me something?
You only get an answer about these type of builds by getting it rolling again, going to basics, and sitting on the blessed thing
and going from A to B. If it suits, game on. It's a treasure. It's RH for free. If it doesn't suit, pass the project on to someone else.