All of these things seem minor and point to lack of maintenance. I would buy another car and fix this as time allowed.

I have a 2012 VW TDI and a Dodge Ramsey and 2 SDs. When the Ramp needs a key, I go to any hardware store give them $2 and done. The VW requires some $150, a wait for shipping then more money to the dealer.

The SD alarm goes off, I unplug it and go. The VW takes $200 for a door sensor and 3hrs actual labor or more money at the dealer. I'm going to try keeping these vehicles 40 yrs when I'll quit driving at age 100+.