To answer a few of the above:
Yes the wheel does turn although clearance is ‘precise’.
The guard is clip on so will only be there when needed to stop me getting a soggy arse.
I’ve always fancied a bike with bullhorns, for no logical reason.
It’s not likely to be used for cross racing but there are a number of gravelly and farm track short cuts in the middle of road rides to useful/nice places locally that would have me mincing on a pure road bike.
As I mostly ride singlespeed, 7 gears is plenty for now.
If I mounted the shifter by the brake the cable routing would get a bit messy.