Take this
and
Put it into...
This!
And there you have a grossly overpowered little bird! Maybe a leeetle too much power I daresay.
If I heavy mod the structure to use the engine as tractor configuration instead of pusher what kind of problems would rise except for the obvious CG shift(which will be taken into account when re designing the thing)
It seems fauvel smallgliders are the choice for minimalistic single person flight(other than ULMs of course)