Hi Matty, been away for the weekend without internet but normal service is resumed.....
as Barry said its around 150 - 200 miles a day, fridays an optional bonus day - last year we left from stirling around mid day and had a reasonably relaxed run up to inverness, saturday is usually around a 9 - 10 am departure and a stop for the night around 5 - 6pm and sunday 11 til 4ish back to inverness, though all are approximations until the routes set
as a guide i spent around 180 quid last year on fuel but that was leading with purpose
hotels i usually manage to get a decent group rate for dinner b&b which helps fund fuel, well a little bit.....
the stunning scenery, good weather and amazing banter are all thrown in for free of course