The 327 is a great unit. If you want some extra "IN" functions, like weather and traffic, consider the Echo Uat. It has WIFI out and you can also hardwire it to an EFIS.
We've done lots of setups like these in the RV's.
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES/RW
Kitplanes "Unairworthy" "Diagnostics" monthly feature
EAA Sport Aviation "Checkpoints" monthly column
Author "Pre-Buy Guide for Amateur-Built Aircraft" & "Are your Nuts Tight?"