Attached is am image of my ATT towers (my best bet I believe) in relation to where I live (relatively center of he image). The four twoers lsited range from 2 miles to 3.8 miles for my house.

My initial research lead me down the Ubifi route but when I dug deeper I came across many more options beyond the standard Mofi4500 and a uncharged unlimited plan. I've seen options of building you own setup's to routers other that the Mofi4500 ... then I realized I have a couple of Sierra Wireless AirPrime MC7354 modems attached to Sim card equipped USB PCB's laying around and was wondering if there is a janky, DIY route I can go with my set up.
This is all new to me but I also know enough to be dangerous so I was looking for a bit guidance ... sorry if this intro should have been posted elsewhere but with me having those Sierra cards laying around this looked like a good place to start.