I have been looking at the TailbeaconX with an AV30C as an ADSB solution, however it's only one option. It does get me some panel space back, but the transponder is tough to change codes on with the AV30C (have to get to the page and change with tiny buttons, not all that easy in a helicopter.
I am also looking at the headless Garmin solutions with WAAS as I already have a GNS530A (non-WAAS) this with a new transponder like the KT74 which fits in the same slot as the existing King transponder. OR something completely different.
I'd post pictures, but the system wont let me yet.
Rick