Well, I'm just about getting ready to rebuild my TZ with the following mods. Feel free to pick out ones that don't belong:
SIGMA display
Pinball Pro speakers
Home ROM
Mini-switch kit for the mini play field
Cliffy for the side of mini play field
GLM replacement door panel insert board
Gumballs and lit gumball mod
Original touched up and clear coated play field (Thanks Neo!)
Clear ramp
Plastic protectors
Strong version of slot target/Clock Millions
Does any of that add or detract from the value? Or it's worth the same as any off route TZ (around 4.5k?)