gauge questions?? 2 5/8 holes, 2 1/16 gauges

i have the monster tach dash pod with the 2 extra 2 5/8 holes. well most of the new style gauges are 2 1/16. the set i want are only in 2 1/16. to my suprise it seems impossible to find any mounting kits or reducers or even a 2 5/8 blank that could be drilled to fit a 2 1/16. ive searched the world over. i could go with a pillar pod to get me 2 gauges on and do away with my dash pod if i could find some other way to mount my tach without drilling holes in my dash. i wish they made the same style dash pod without the extra holes. i already have gauges in my vents. any suggestions besides turning my own adapter? you would think autometer would have benn asked this before.

well thats what i would need but wow there pricey .... i need to start turning and selling them myself. i was looking at a boost gauge and a wideband but i may be better off getting the A pillar mount because it may be easier to run hose and wires down the pillar. any thoughts? it would be sweet to have the dash pod that was just for the tach.