Kenwood 500 turntable arm set up.

@reched viridian is suggesting a very good idea, but I would expend on the Materials being used to produce the TA's Base Board.

Start with what is quite cost effective of which one option is already made known.

A Newplast Modellers Putty can also be added to the Underside of the Base Board material to substantially improve on the Damping Properties.

The Better the Damping for the mounting of the TA, the better the Cartridge will be catered for, as the local energies that are present, will have their Amplitude reduced or improved as a management.

The synergy that really impresses between the combination of materials will be discovered for one being quite unimaged for the valuable impression made.     

Thank you. Here in rural North Carolina I have neither the resources or mechanical ability to make a board like this. I may look closer at the one on Etsy, but it is a little steep.

yogiboy, Thanks for the link, expensive but looks like a perfect match.

It is pricey, but you will be spinnin’ your wheels tryin’ to find an arm plate for that table!

BTW, I owned that table many moons ago and I thought it was outstanding!

There is seemingly plenty of options to have a talk with a Service that is local and will make easy work of producing a Part, it sounds like a Apprentice Pin Money Job.

Companies like their Apprentices to get a chance to express themselves and have a little responsibility.

Private Jobs like this one, do not mean costly, usually quite affordable. 

https://www.google.com/maps/search/engineering+machine+shop+in+north+carolina/@35.6202985,-81.5402989,8.75z?entry=ttu&g_ep=EgoyMDI1MDYzMC4wIKXMDSoASAFQAw%3D%3D