I was very fortunate to find a working and decent shadow for $1800. Along with another $2K+ game for the same price. Ended up selling the other game for $500 profit... so I guess my TS cost me $1300
Mine has some issues that need repair, so it'll be upwards of $2500 once completed, but that's fully restored, gold plated ramps/divertors from Mike Chestnut, new plastics, new head decals, Aurich's translite/speaker panel and a bunch of other upgrades. The good news is that it was playing 100% when I bought it.
I got a great deal though. In reality (at least in Canada) The Shadow is in the $2800-$3200 range all day long.