[RHayden]

Major things like aux hydraulics (which is normally standard but still considered an option- and are they foot controlled or T-bar controlled); tracks; floor throttle. Standard materials bucket?

Minor things like a horn; back up beeper and mirrors. Little rinky dink things but they add a little value nonetheless. You might also check the transport weight. If I remember correctly the 66's are fairly heavy. Doesn't pertain to value I know, but you want to be sure you can move it safely.