Thanks for the encouragement.
I'll admit I had to Google it, but yes - that would suit me just fine. Do you think the 'Snowdon Rollercoaster' would be a good start? (Llanberis, Moel Eilio to Moel Cynghorion, up the Ranger to Snowdon, back down Llechog and the long ridge down to Llanberis).
(I know those mountains well, my fitness is coming along nicely - most of my runs are around 10 miles with hills, I walked the 15 Peaks without very much difficulty back in July).
Is this too ambitious?