Originally Posted by iamacat

I'm 6'2" so looking for at least 60cm, maybe up to 63cm.

Not super confident but I made a little checklist for myself:
-Check for dents on tubes by feel and visually
-Check that chainstays are not crushed by kickstand
-Check that seat tube not crushed by seatpost
-Checks for gaps in/around lugs
-Check that head tube is in line with fork
-Check that wheel splits fork blades evenly
-Check that fork blades line up from the side
-Check that rear dropouts are spaced correctly with ruler
-Check that rear dropouts are aligned visually
-Use string to check that seat tube and head tube are aligned