More realistic pricing.
That door is more like a $20 door, $30 tops (if the mechs, keys and bucket are all there too). Drilling that big extra lockbar hardware into it assured it is always going to be on the low end of the value scale.
A tested working used switching power supply is worth roughly $10. Todd from TNT amusements sells them for that price all the time (they put new power supplies in all their games, so he frequently puts used ones up for sale on a different forum). You can get brand new chinese ones for $20, and the good ones happ ones only run $25 new from Bob Roberts. If that power supply isn't tested and working then it is basically worthless. (Did the game work before you took it apart, if so then the power supply works too).
Isolation transformer. It probably still works, but it isn't worth shipping. That is the sort of part that game collectors just give away to each other for free. They have a very low failure rate and every game partout produces another one. A new one is all of $12.
Top pic: Happ Controls Over/Under 2-Player Door. They are worth around $100 new, less then half used.
Middle Pic: Some sort of generic switching power supply. $20-$40 if it's working and in very good condition.
Bottom Pic: Very rusty 1:1 isolation transformer. Not worth more then it's cost to ship, and even then that's argueable.