There's some issues since resolved.
Those Campagnolo brake levers do more flexing than cable pulling. I want my decelleration to be more than coincidental to pulling the lever. They've been replaced with some Shimano 105. Again 2 left levers, this is becoming a theme. Brakes much improved.
Top tube internal cable routing is blocked with who knows what / rusted out. Even the trusty method of using a TIG welding rod as a pipe cleaner failed. Cue electrical tape to hold cable housing for now.
The headset didn't so much turn as click through about 5 degrees of motion each time you turned the bars. Replacement of crown race and lower bearing got things moving smoothly.
The crackling sound of dry brittle tires can only be ignored temporarily. Lucky I made it to the gas station and return without explosion. Some Conti GP 4000s will do the job for now.
So even though I've not spent a cent it's totally over capitalised in terms of time spent. A great result for me. It's comfy and just maybe I could squeeze a little shine out of the paint in future.
A big thanks if you've read this far.