I can see 3 ways you could try using the me80 and the 11r.
1. The one you have described already.
2. Guitar into the me80, the me80 outputs into the inputs at the back of the 11r. This allows stereo effects of the me80 to come through. This is how I'm connecting my zoom g5n to the 11r.
3. Guitar into 11r truez, fx loop send to me80 guitar input, me80 output/s to fx loop return/s. This would allow the me80 to be used as an fx loop anywhere in the chain. Good if you want to use fx that the 11r doesn't have, like pitch shift.
Good luck