...I don't posses the skills for what appears to be a simple task, and I also don't have any stores within a 100 mile radius that offers styrene in any shape or form..
I bet you do. And it doesn't have to be styrene. An old pen tube, coffee straw, some solid wire or metal rod would work. The mounting plates could even be cardboard. It might look ugly at first, but once you hit it with paint you'll think it was factory.
I don't suggest going old school to discourage you from finding a 3D printer if that's what you really want to do. If that's the case, do you have the 3D model and just need someone to print it? Do you have the dimensions and need someone to create the 3D model then print it? Or do you need someone to research the dimensions, create the 3D file, then print it?
Depending on those questions, you're looking at about a 25-85 dollar project.
If you just want someone to make you the part, no matter what method, I can scratch one for you for about $15 if you can pull a few key dimensions.