Kenwood 500 turntable arm set up.

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

Thanks for all the information . I believe I have a friend here who is a woodworker who says he can take it on . He has the knowledge and tools and with a template I think it can be done without too much difficulty . Thanks again . 

If going the Wood Working Route, the selection of 'Resin Impregnated Densified Wood Board' Material will be a great choice.

I'm sure there is  Gon Member with a small Off Cut that they can part with.