60"ers are getting rare indeed.
If you can... Find a kuro 6020.
Change out the audio board...
Viola !! Elite 151 plasma.
Opens alls modes for calibration
Did this my self on mine. (pure)
Info. on the avs forums under "plasmas"
You can do this with the 5020 as well.
Cheap way to get a top of the line set.

Cheers

Cruzzco