inside-out inc and dec

[Hildegard_von_Knittin]

Since I'm wone of those wierdos who purls faster than I knit, I want to make my next sweater ( Lucie from Knitty ) in the round inside out--purling instead of kintting. When I get to the shaping, I want to make sure I do the decreases correctly.

The directions say:
K1, k2tog, k to last 3 sts, ssk, k1

So, should I p2tog and then sppsso? What are the "backside" equivalants to the right side incs and decs?