Filling a dash hole

[vintovka]

About 50 years ago my cousins decided to kick in the speaker grill in my 54 chevy 3100. Over the years the speaker grill wound up being cut out entirely and being replaced with a crude cover with the typical 3 gauge aftermarket panel and a big blank spot. Now having the entire dash refinished and the question of what to do with the hole. Was thinking of having a nice filler panel made with room for gauges at the bottom and a GPS/tablet in the 10" x10" space. The truck is still in demolition phase and excuse the finger tip (arthritis). The function of the gps/tablet ideally could include navigation. speed, camera display and possibly altimeter plus anything else they think up. A simple power feed and detachable mount is what i'm thinking. I understand it might be possible to have full engine monitoring, phone and even a picture display. What do you think?