Thank you for the feedback and the welcome.
The bike looks new, apparently original owner barely used it. The fit is perfect at 55 cm. Lightest and best bike I've ever ridden.
Shifters are a little iffy apparently, unsure if thats a real cause for concern and if so, if replacements are pricey.
I've read Shimano 600 is a good group, but is it worth that much?
Also, new to the Columbus tubing game as well, so any info on Columbus SL tubing would also be appreciated.
Thanks again!