don't do wifi unless you have reliable wifi there, but def stay away from myq
i did have a thread about my experience creating a garage door opener. it is pretty lengthy overall, but i did use a z-wave outlet and a relay (which would be consolidated into a zen-16 for your case), and i haven't had any issues with it. i also have a strong z-wave network, so i didn't need to worry about coverage in my garage (i also have a z-wave switch to control my garage lights). it also has an alternative to make your own tilt sensor instead of buying one, and the combination of it all has worked flawlessly for me