I've got this Heavy Metal Meltdown that turned out to be prototype spec (drop target blocking ramp, Bally Midway cab art and a few other details).
It's very likely that my machine is the only surviving proto spec HMM out there with intact mechs.
I've spent the last 3 years getting new ROMs programmed to make these features work (long story, but the proto ROMs are lost).
And finally, I've just restored the cab, shopped the entire pin, added new ramp, legs, glass etc...
Here's my thread on the entire adventure if you're interesed:
https://pinside.com/pinball/forum/topic/my-proto-heavy-metal-meltdown-adventure
But.... what's this thing worth?
I've had my fun with it and I'm ready to sell; and it's about as nice an example as I've ever seen.... but it's still a Bally 6803.
These don't normally sell for much more than $1K in routed original condition, but I have to think this is an exception, right?
If I'm playing devil's advocate:
-This is a one-of-a-kind collector's piece
-It's in awesome shape
-It has custom code specifically made for this example
-All new repro ramps by Freeplay40
-New glass, legs, siderails, rubber etc...
-Cabinet and topper restored with custom made decals
-Custom proto drop targets I comissioned from PBR
-Awesome music theme
-These never come up for sale (proto or otherwise)
I appreciate any advice/opinions