Same info as Brian, I have D-100, D-120, HS34, SL30, GNX 375 and Aera 760, all works fine. You might want to consider adding the 760 to give you a larger screen for the G 175 display output for charts etc. and for the frequency upload to the SL30, it can also drive the A/P in RS232 mode.
I used some of Brians diagrams (from the Dynon forum) as a starting point, I also decided to get the 375 harness from Stein as the high density connectors seems a bit more challenging than regular DB connectors.
Figs