Well, MiniAL and I got the battery tray fitted yesterday, found that we had to trim up tight to to bumper mount and left a touch to allow removal and fitting of the battery.
Removed horn, took the first bracket off, and remounted it above the battery out of the way.
The plastic thingy on inside of the wing got in the way a bit, but managed to leave it in situ.
Negative battery lead, no problem.
Positive lead, unbolted short lead from fuse box, where it is joined to main terminal, re routed main lead with battery terminal, down and through convenient large cut out behind battery, and plan to extend smaller cable and route through 32mm? Existing rubber grommet.
Happy with how straightforward it was?
Cheers
Alex360