My fixed fan C7 coolant temp rises quickly from cold
to 180, Then another rise to 190 about 10 minutes later
where it stays regardless of load. Cat ELC installed last
year w/o thermostats being changed.
I've been happy with my inexpensive GC-2's from Sam's.
Make sure that the battery caps are compatible with the connection wiring. I found that the "ganged" caps couldn't be used because of clearance problems so I installed conventional individual bright yellow caps.
I use an app called Repeater Book. It lists all repeaters in order of distance from your phone. Another way is to purchase the ARRL repeater directory. I've made many contacts while traveling and stationary. I prefer 40 meters but that's another story.