Whether after rotation it would position might be the $64M question. Currently the computer box sits on the floor low down, across from the a front window, beside the desk. The router sits atop the computer box. Probably that's not ideal but there seems no where else to put it.
The 582N mostly is OK, except in the conservatory and utility room extensions at the rear of the house; 40' on the flat but a bit more as crossing from upper to ground fllor diagonally.