I'm 94% clear of Class C when I fly (never B). I have flown to KMSN a number of times to go play Army in the Hawk. Not having UAT/ES would hamper that.
I need to replace my 250XL in order to get GPS out. I found a plug and play (mostly) Xpndr to replace my KT76A.
I'm looking at at least $4000 for the hardware, let alone the labor to remove and replace. FML.
However...
I'm doing a pre-buy on a 180, as I type. But the conundrum is still there. I might pony up the $$$ and make if IFR with a GNS430 (w?)
I want to say a KLN89B has GPS out as well.