I've elected to go with a modified Package 4.
PAR200A NAVCOM
Garmin GTX 327
SkyGuardTWX VisonPro with ADS-B & AHRS (and iFly 740)
I've ordered the 978 MHz UAT antenna and an annuciator light. It would have been nice if these were included in the Skyguard kit. I'll use the included interior mount GPS antenna on the Skyguard. The Skyguard provides ADS-B In/Out, GPS, and AHRS.
My altiimeter failed the static check, too much air leading around the face. I've ordered an MGL ALT-4 altimeter with build in VSI and encoder. I'll keep the existing altimeter and VSI as backup guages
Awaiting all the parts so I can start installing.