Mounting a tv in the front bedroom of a 2014 Jayco 26BH

When I did this in my TT, the inside walls (which are without insulation) were thin enough so that I was able to feel by applying hand pressure where the studs were. If that is consistent with what your stud finder discovers, you should be good to go.

You can also do a test run with a very small brad or screw to see if it holds before the actual mounting.