Well, I've always had very good results with the standard Goldring springy plinth and despite the total trashing of the arm's worth, I'd say to get both decks re-"v" blocked, get a fresh deck to amp internonnect fitted with separate earth for the chassis. Get the underside of the platter clean along with the motor spindle and idler wheel and lubracate carefully where necessary. Without spending a fortune you'll have a fantastic deck that despite the arm's high mass, will still take some good basic cartridges - the AT95E is a great start and I suspect the Pickering V15/625e and AT120E will be fine there too, despite reservations from "on high" on this comment (the Linn AT sourced K9 worked fine in the L75 with no "wobbling," as did an ADC VLM).