I've got a rather nice imho steel diamond back apex. It's a Matt blue, I've just taken delivery of the correct matching forks. I have most of the period parts to build it up too (LX 8 speed,l mechs, brifters and cantis, sugino cranks and original spec post, stem and bars. My intention was to build it as close to spec as possible, with the exception of wheels, tyres and saddle as I don't have those but some decent replacements.
I could let the frameset go though as this was a project I was going to sell once built up as while I had originally wanted to build and ride, it's slightly too small for me.