Hey warren, i think Shopbot or camaster might be best .
And Freedom patriot cnc might also work good for you. As that cnc can help you cutting wood and plastics like – PVC easily.
There are many models of shopbot so that might be tricky to buy. I am linking a article which i found quiet useful for you .
https://theedgecutter.com/best-4×8-cnc-router/
They mentioned 12 best 8×4 CNC. So you can check each one specs ,pros, cons, properly.
If you still find harder to come on any result then you can tell , try to help you as much possible.
Have a good day