I don't think that's too bad a machine. the dragons are unique, but there is some staining on the face (don't let the seller use any more liquids on the face, or there will be more staining)

the back of the machine is missing the ramp cover (easy to make one) and the cover over the jackpot mechanism.

if this is a first machine, you could learn a lot from this one, and I'd offer $25.

add on a little bit for balls, since they cost 4-10 cents each now.

good luck!