@noracodes I have not played with the T-Echo yet, but do like their T-Deck and have a review of that device available, (though since it's not directly related to your inquiry no need in linking to that).
For base stations, I'm a big fan of Seeed Studio's P1 - https://www.seeedstudio.com/SenseCAP-Solar-Node-P1-for-Meshtastic-LoRa-p-6425.html
Comes out of the box with everything you need without having to fight with anything.
At the end of the day, any device will work just fine, (providing it has an external antenna and reliable power). Just remember that height is a top priority. The higher you can get your node the better visibility you'll have and better connectivity to other nodes.