Refurbished a Nakamichi 700 or 1000?

Any body have any experience upgrading, repairing or bringing a old Nak 700 or 1000 up to speck? In particular, any experience with ELECTRONICS SERVICE LABS, 1807 Berlin Turnpike, Wethersfield, Connecticut 06109 USA, They want $200 just to clean and test a deck and then a green light for repairs under $500. I have some limited use for cassettes, but wonder if their service is worth those dollars.
email or .net, I forget. He can help you sort it out.
Jul 1
I suggest SoundSmith of NY for repair and
Their charge will be approx 1/2 cost of
orignal deck selling price.