If your not running more then a 100 watts then LDG line of autotners are pretty good buy. I have been using one for years now with no issues at all, even ran it in the car for a short time. They tune quick, store the freq in memory for even faster tuning but don't feed them more then the rated power or you will let the smoke out. That being said I have feed as much as 150 watts into mine by mistake and it came away working fine.
The
Yt-100 is designed to work with your radio..
Oh and btw the G5RV will work fine. Is it the best? No but they do work.. remember its all about band conditions.