Chevy and GMC Gauge panel dimensions?

[siggyfreud]

Does anyone have, or could measure the dimensions of the Chevy and GMC gauge panels?

I'm considering picking up a 3D printer to start making different panels, however I'd like to ensure I get one big enough to print these. I know the Chevy aftermarket is covered, but it seems the GMC market is very limited, and most options don't include the outer ring needed. They just appear to be the right-sized backing plate, meaning if you don't have the original to steal from, your options are limited.

Cheers all!