There are several on Ebay right now. In that shape I would guess around $5,000 - $6,000. I am no pro though. I know there is a rough one on Ebay right now for $4,800 and that the higher end restored MB's go for $8,000 - $11,000 now.

Straight off route, with all the work it needs, I think $4,500 is a good price to shoot for. I'm not saying that the vendor will let it go at that price, but it's worth a shot. I'd start with a $4,000 offer, and work up from there. Make sure to point out how much money you are going to have to put into it in order to bring it up to snuff.

Agreed

Gweempose is on the money. About $4000. Probably no more than $4500.

The main concern with a newer WPC-95 machine like Monster Bash, is to make sure you are getting clear audio from the speakers. Play a few games on it to see if there is audio popping. If you get pops/drops, it may be a bad sound board. Very expensive to replace, and sort of hard to find online. They go from $300-500. Bring it up, and possibly get a few bucks docked off the machine.

The scoop you can sorta touch up with paint, and cover with a cliffy procector.

You can sort of cover up the peeling leg decals by just getting leg protectors, to place between the leg and the cabinet. You can probably color coordinate with the cabinet art so it doesn't look as obvious.

Other little stuff isn't that big a deal, and can be fixed. Little stuff like bulbs, rubber, weak flippers, or a weak auto-plunger (very common on routed MB's) can be fixed rather easily.

If you find out that Frankenstein & Dracula bash targets are working flawlessly, then that is a HUGE plus.

Good luck on this one, smokedog. Monster Bash is a killer pin. One of my all-time favs.