1D Beinn Bhalgairean and Meall nan Gabhar
You can drive most of the way to Succoth Lodge - there is an Authorised Vehicle Only sign at NN206265, but you could drive (or bike) all the way to NN219245. From the track a bit further on, apart from a deer fence to climb it is a straightforwards ascent to the old & new summits of Meall nan Gabhar.
Retracing your steps to the forest track, the route to Beinn Bhalgairean starts from NN218247and is an easy climb to the summit.
(4 hrs 35 mins, 10 miles, 3050' of ascent)