I handed over the Comanche PA-24-250 to Advantage Avionics in Chino on Monday (6-1-15). It will be there for about two weeks for the avionics upgrade (center stack) with the following:
All Garmin
GTN750 (yes the big one)
GMA340 audio panel
GTX327 transponder (no need for the 330 as I won't be going over 18k)
GNC255A Nav/Com
GI 106A Vor's (2)
The GDL88 will come at the end of the year.
I tried to pull-off adding the Garmin 500 glass system but way out of price reach on my very limited budget,
Yes it is pricey, but it will be worth it since I will be keeping the Comanche for a very, very long time
Will post before and after pics after I pick it up.
Adolfo