I frequently use repeaters on 2 meter at home and while driving to Camp Shelby, MS but don't consider them to be reliable for use in emergency situations. The radio club of which I'm a member, in Memphis, operates several repeaters although one is sometimes inoperable due to costs and scheduling of maintenance issues. While the cheap chinese radios work, I prefer to depend on better quality equipment. My primary use of the cheap radios is to loan to members of my Guard unit when their radios fail.With your ham license, a good 2m mobile set up as a base and decent antenna up about 30’, or more, may provide what you need at each site. I’d stay away from the Chinese knockoffs for this application. If you need more directivity than an Omnidirectional antenna, there are some simple 3 element yagi’s that can be built from copper pipe that have a direct connection without an impedance matching network. They can be rotated by a small TV antenna rotator.
Plus you may have a repeater situated where you can often one use it from those three different sites.