In QLD, on a regular basis, over the last 2 or 3 years, including only last week, a really nice widebody Indianna with excellent playfield with new globes n rubbers, with a faded cabinet sells for $4000 to $4500 all day long.
I have seen redecalled Indiannas with everything smick, sell for $5500 to $6,000 very quickly. I know of one Dealer up here who sells fully redecalled/refurbed units easily for $7,000 to the plug n play home market. He always has people lined up for a good Indy. (but us collectors always pay less ofcourse).
In some other states/areas, the prices can be cheaper, but buying a Indianna with a really smick playfield in QLD is a easy purchase for alot of people who want a first or 5th pinball machine. Indy's always sell very very easily and are very popular here in QLD. I bought a real nice one with cabinet fade recently for $4000 and was very happy cause the machine had LEDs etc . At $4000 I was v happy, and $4500 would not have been a stretch at all for an immaculate playfield/orig boards etc etc.
Start at $4000 to $4500.