I don't see the logic in putting a new tremolo (or like new) on old posts. Never have understood this, never will. The new posts are like new tires/shocks on a car... for alot less $$$. Give you a fresh, new ride.
Simple math... the studs cost $20 (widely available) and the Edge/LoPro
base plate costs $70-75 on special backorder.
The paint is not such a worry, but can indicate signs of wear/tear or improper installation (scraping when istalling). I don't have near as much TRS experience as the EDGE and hate to comment on metallurgy but the concensus is the posts and TRS baseplate are a step down, for whatever the reason (materials and/or manufacture).
Finally, the TRS posts don't have the set-screw to lock them, so you're going to get wear/tear quicker, due to subtle rocking of the posts in the body anchors if nothing else. Both to the posts and the tremolo knife edges. Also subtle tuning instability... glen