Check back with Auto Meter for this type overhead gauge pod: http://https://www.autometer.com/2-1...ram-03-05.html
That shows a triple pod, they're also made in a double and a quadruple (18016 & 18018). I have one of the triple's mounted now but only two gauges currently installed---deciding whether to add a third gauge or switch to a double pod.
The grab handles make placing something on either A-Pillar so this might be the next best location--it works for me. Photos available if they'd be helpful.
BTW I have one of the quad pods for sale if interested. Brand new, 50$ shipped most anywhere in the lower 48 states. Its a bit inconvenient though because if the visors are lowered the first and last gauges are somewhat obscured. Might not be an issue especially if one needs all four gauges.