Rob Holt bought my un-restored GL75 without plinth but with spare arm and a replacement set of "V" blocks for the arm for around £55 and I regarded that as a very good offer indeed.
Now the secret's out and the desirable Garrards and Thorens 124's etc are fetching insane money now, I daresay the dear old GL75 will now start to climb in value. It's a wonderful drive and the arm is good too if properly understood.
Me, I'd probably try to find a GL78 or even the very rare (in the UK) GL76 with "S" shaped jelco derived (?) tonearm.
Tear down these walls; Cut the ties that held me
Crying out at the top of my voice; Tell me now if you can hear me