I tried to find an Ra perm that wasn't confusing and didn't have any D moves until I hit the jackpot: here it is.
(R U R' F') (R U2 R' U2') (R' F) (R U) (R U2' R')
I tried to find an Ra perm that wasn't confusing and didn't have any D moves until I hit the jackpot: here it is.
(R U R' F') (R U2 R' U2') (R' F) (R U) (R U2' R')