SAE Amplifier Channeler

I have several vintage SAE amplifiers. 2400, 2500, 2600 & A501.  Amazing specs but they've grown long in the tooth. I'm nostalgic beyond objectivity.  These days, all my gear is "everyday", no listening rooms or special occasions.  Is there a technician out there that can still breathe everyday life back into this gear, or do I simply dump it on Ebay? Hard for me to let go of these 60# chunks of James Bongiorno audio history.  Thank you for your opinions, advice and therapy!