Good Afternoon,
The
GTX 35R will fulfill your transponder needs, including the ADS-B requirement. It is listed for $2450.00. You would still need an ADS-B In receiver however, to receive ADS-B traffic and weather information, a
GDL 50 would work for these purposes.
The
GTX 45R is similar to the 35R, but has a built in ADS-B receiver, so there is no need for the additional GDL 50 or similar receiver, to receive and display traffic and weather information.
Another option we have is the
GNX 375, which is a combination IFR GPS Navigator, and ADS-B In/Out transponder. The GNX 375 can send ADS-B weather and traffic information to your G3X Touch display as well. If you have a need for IFR GPS Approach capability, this would not be a bad choice.
Let us know if you have any additional questions.
Thanks,
Justin