Looks like a fun 0.1 design. Keep tweaking it, and you could have something there...

Suggestions:

-Change your CIM weight. They're around 2.5lbs (someone else probably has a more accurate weight)
-You don't need a motor to pull up the front. Spend some time with cardboard and straws, you can find some much lower profile frames that can make this happen.
-If you make the "bending" point centered on your middle wheel's axle, you won't need crazy shenanigans for tensioning.
-Keep playing with this!