My Mercedes tech has told me to get rid of my Benz when the evaporator goes. Apparently, the car is practically built around the unit.
If you only scratched one part thats a testament to your patience!
I've done a few evap replacements myself at the shop. My ass doesn't fully relax until I've put it all back together and there aren't any scratches! The only part that poses a threat of scratching something IMO is taking the dash out of the car. You guys know how tight the cabin is.
It's a pretty cool job though.
(no to play on words).