There is something seriously wrong with this design.
In all seriousness, I fear you're right.
We always used to say, if it looks right, it'll fly right, etc., but I can't recall ever having such an uneasy feeling about an aircraft's ground clearance. Remember, this is the core of the problem we're discussing.
Fuel, payload and a bit of the thumper will make it even more critical, and that's before a hefty cross wind.