I have my old Pista frameset in the shed. The LONDONLONDONLONDON PISTAPISTAPISTAPISTA livery. Bought from Ved maaaaany years ago so should be the right size. Bit rough on the outside. You could go and get it redone in a complimentary paintjob of your choice.
What about a Condor Pista:
I had two, one snapped, one got nicked. I loved them both.