OH NO I LOST BIG MUFF , and maybe found her again?

Hey guys I bought one of the old Russian Big muff Pi's , not a remake for 10 bucks. I thought it was ropetty sweet.

Anyways its 3 months later and I went to this new years party, It was stolen from me , Diddn't see it for 3 months, NOW this guy I know said he found one that mathced ym description exactly, even down to the duct taped abtter jack and the tilt o whirl knobs, He said H'ed give it back to me if it was mine. So wish me luck!

Any ideas on the value of one of these, If i fix the knob of course . It is fully functional and sounds un real.