Thanks for your responses.

I will invest in a caliper.

As for the Tange Levin headsets Kurt mentioned, they do in fact have a very tall stack height (all are above 40mm, besides one which is 37.5mm - I believe). I never doubted you for a second, Kurt

The bike is a bit small for me. I ride a 52cm frame - this is a 49.5cm. I'm really just using it to mess around with - I certainly won't be doing any serious riding with it.

I got the crown race measured. It's 27mm.

I have yet to find a body shop that's willing to paint the frame, lol.