Totgas,
Many years ago I made dashboard pod for 1100GKE.
I went to a surfboard shop and got the off cuts for free, glued them together and shaped it to what I wanted, less the thickness of fibreglass, so the finished product would fit the dash and the screen.
Took it back to the surfboard shop and they fibreglassed it for me.
Made the hole for the radio, and through that hole I broke up and removed the foam.
Can of spray paint and done.
This may be an option
that way you get what you want/need.