I'm getting ready to get rid of my headunit as well. How many gauges do you estimate you could fit with the same tilt?
I've seen a single DIN gauge mount for 3 but it looks like crap and like the gauge bezels would go over the edge of the faceplate. Not to mention the folded "washboard" appearance would look horrible against a largely flat dash. Yours looks a little more fitting sticking out vs. being recessed into the dash like this:
https://www.amazon.com/GlowShift-Universal-Triple-Gauge-Single/dp/B001PHVAOW/ref=sr_1_3?keywords=din+gauge&qid=1551751125&s=gateway&sr=8-3