In reply to ActionSte:
For climbing mostly below E1, make sure you include Cornwall - Bosigran, Chair Ladder, Sennen and lots of others.
For climbing mostly HVS and above, do Pembroke and or Gogarth.
Add Llanberis Pass for either, or Ogwen for classic low grade long routes.
I've barely climbed in Scotland, so I'm sure you could do 10 days there if you decided to head north