We are Private EMS.What is your organization like? Is it private/business or are you part of a city/county/regional/state agency?
If you are an agency, there are plenty of UHF repeater pairs in the interop pool, plus the UHF Med channels that you would qualify for. Contacting your Statewide Interoperability Coordinator at your State OES (or whatever they call it in your state) would be a good place to start.
If you are a private group, then an itinerant UHF repeater pair would be easy enough to do and give you the ability to set up in different locations.
Lots of small suitable repeaters out there. I've got a couple of Kenwood NXR-1800 UHF repeaters I'm about to deploy at one of our remote sites. They'll do analog, NXDN or DMR as well as mixed mode.
The itinerant UHF repeater sound good.