A lot of cargo, 121 and 135 outfits fly junk. It is a part of the job to be able to understand what maintenance issues are annoying from what will take you down. The farther you get away from the airlines the worse it gets.

If you really need to fly well maintained stuff, get paid well and fly alone then join the military and become a fighter dude. Otherwise start saving up for a brand new Cirrus.

Outside of that your longings will go away over time.

Skyhigh