What router to use with LTE AP?

Hi all!
I have a bit weird situation: I need 2-10 laptops to access a web application in a max. 100 metre radius, where wired network is not available. My choice for network source at the moment is the Mikrotik SXT LTE kit and I'm searching for a suitable router. A rather stable network is what I'm looking for, range shouldn't exceed the 100 metres. Do you have any suggestions?
I'm definitely not an expert in networking so please excuse me if I got anything wrong.
Thanks in advance!