Forsell Air Reference Mk 2 Worth buying?

I have the opportunity to buy an older Forsell Air Ref. Mk 2. It has been modified with an Well Tempered Reference Motor and has no flywheel. After reading as much as possible on the net about this turntable, I have found that it is an outstanding performer and a royal pain in the derriere.

Would like some guidance from those familiar with the turntable before I take the plunge! Bob