Reel to Reel Woes

My 35+ year old Tascam 4 track finally gave up the ghost.  I told myself when that finally happened I'd upgrade to a Revox B77.  I have 60+ reels of tape that contain music  that can't be replaced.  I am finding basically 2 choices in the Revox market.  Either buy a "works great" but sold "as is" deck for $1,200 - $1,750.  or buy a completely refurbished/rebuilt deck for $5,000.  My system is a fairly high end one (Audio Research, Wilson) so, I'll need something of high sound quality,  Any Ideas would be appreciated.  

Thanks guys!!