Have you looked at YouTube TV? They don't have MASN, but they have most other sports. It's $35/month if you sign up in the next two days (going up to $40 for new subscribers after then. And I believe it works on apple TV. In any case either one will work on a RoKu which can be had for under 50 bucks, if not cheaper.
Using a VPN is not difficult. It is relatively easy and cheap (or free) to do on the computer, It is very difficult to do on a mobile device such as a tablet or phone because they have built in GPS.
