I have flown my KR across country a few times with a Icom A-5. It is one of the smallest handhelds out there. It works awesome and you can program 10 banks of 20 freq's through your PC for your route. Then it becomes one click to change to the next freq enroute. I have never used any type of booster but have talked to people at 100 miles. On one trip home from the Gathering, Richard Shirley was in Tennessee and I was coming from Alabama to meet in Red Oak, Arkansas. We were both an hour out and able to communicate.
For the money and performance. I like the handheld. If I did install a panel com, the Becker would be my first choice for the size of our planes. The microair seems to be ok as well and is less expensive that the Becker. The Transponder gives you more options if you are flying and distances. Again, one of the small Becker or Microair would be good. I have (had) the Trimble/ Terra TXN 200D. Good unit but no longer in production and hard to have repaired reasonably. FWIW Steve Glover KR-2 N902G AJO, Ca <kr...@cox.net>