Vintage SS repair shop near Cleveland/Columbus/Detroit?

Have a Sansui 1000X receiver that lost its AM section during a nearby lighting strike. FM section and amplifier still work properly. I’d like to get it fully checked out, repaired and tuned-up. I have the schematics for it, but no box so need somebody relatively local.

Also have an RGR 4-1 preamp with a major channel imbalance and an intermittent Phono 1 selector position. The rest of the pots and switches are fine. This one I have the box for, but no schematics.

Thanks for your suggestions!