Armboard and/or template for TD 150/Rega?

I'm looking to mount a Rega RB250 on my Thorens TD 150. Does anyone know where I could get an armboard pre-cut for the TD 150 and drilled for the Rega? Alternatively, an armboard template would make it easier to have one made, or make my own. However, my access to woodworking tools is limited these days. I have the standard Rega template so I could lay out my own armboard and/or template, but I'd rather not re-invent the wheel if I don't have to.

I've checked all the places I can think of - Analog Dept,, Vinyl Engine, Audio Asylum. If anyone here has any leads, I'd appreciate it. Thanks!