You could always make a custom center section with fiber glass and move the dials around to put the stereo on top... You could probably eliminate the 4WD indicator to make some room there as well, and cluster the other 3 gauges closer together? IIRC, there are only 4 gauges (4WD, Temp, Oil and Fuel) in the stock YJ (the panel above has 5).
The problem with having a stereo in a console is I can't see it. I want the screen for GPS Nav not for matching movies. For it to be useful, I need to be able to see it while driving. Also I have a MasterRac center console (before Tuffy) that houses my CB and 2M radios.
With the dash panel above I could fit a double DIN in there if I cut out a support below the gauges but I'm not sure what else that would effect. The dash panel would need some type of mount added to then support the whole receiver.
There are 5 gauges in the YJ. For a 87-90 it's Temp, Oil, Clock, Fuel, Battery. For 1991-1995 it's 4WD, Temp, Oil, Fuel, Battery.