I guess I did - Angle-grinders rock!
I got all the paint off with a blow-torch and wire brush, removed the kickstand fitting, pump-mounts, chainguard bracket and brake and chainstay bridges. The back can now fit a 28" wheel with about 1 1/2 inches to spare, if one was so inclined, though that would be overkill I feel - 650c or 26" MTB or Iso 520 (24") is likely a better fit.

Oh and I removed most of the headtube below the junction with the top-tube so it can accept 24" forks without having silly chopper-bike steerer angle. It looks rocking in it's dull steel with bright filed bits haha.

Plans: to have a shot at the inspired three-thread UN-54 bb fix posted the other day - looks like a good one. See how 650c wheels will go and if not then maybe look at 520s. Erm. Think about gearing options and whether to go retro with NOS vintage parts (If it's to be like the Team Pro visuals you've seen then it should be Campag Record really) or modern on the groupset. Front derailleur?

I need to find someone that can braze in a new brake bridge - possibly on the chain rather than seat-stays, as well as get a compressor for my 80s airbrush so I can have a stab at painting it all with no decals once I have all the bits I need.