I actually asked for and got a written letter of permission to raid the skip at the rear of our local telescope repair shop, over several years I rescued over 20 etx telescopes that had a fault with their electronics or motors, or had an interior component loose. they werent economical to repair so were skipped, many have been passed on to local kids via freecycle etc and to fellow members of my astronomy club, many parts have been shipped worldwide to repair others broken telescopes, at my expense with the request to pass the favour forward. The shop moved location in one irection about the same time I moved my work location the other way, but interestingly last weekend I met up with someone who had taken over the skip raiding duties at their new location, he also was passing repair projects out to others at no cost, so it was nice to see the project ongoing still.
Grendel