Rallye dash and new gauges

[devilgear]

Hey hey. I was thinking about getting new gauges for my 73 and putting them in the Rallye dash, but the sizes offered do match the gauge openings. I can get a new speedo and tach that are either 3 3/8" or 5", but the Rallye openings are like 4" and the smaller ones are differbt too. Has anyone here installed new gauges in a Rallye dash? Anyone have pictures? Thanks.
LATER!!!

[Nacho-RT74]

I know ppl has done it and Have seen some pics, but dunno how. Probably inserting housing and everything to fill the gap