i'm not a fan of the standard 4 pot setup either, my epi les paul is just single volume and single tone with the standard 3 way, i have a mini switch in one of the left over holes that splits the bridge pickup and i've got an old bullet casing wedged in the other hole to fill the space.
I went with CTS pots and an orange drop cap, i can't remember which switch i fitted, possibly a USA one. ( when i bought the guitar it only had one pickup and a volume control so all the electrics were new)
Matt