Ragnarok is an excellent product, but is probably overkill with the stack you're running. I'd suggest going with one of the following routes:
RPM/IGF-2/Neovar
Stim-free Ragnarok/IGF-2/RPM
Ragnarok/IGF-2
Neovar and Ragnarok are both creatine products, and normal Rag has stims in it, which would probably be overkill with RPM. Depends on how much you want to spend, really. You would probably get better results with the first or second stack, but at a much higher price than the third stack.
Whatever way you go, you'll have your creatine, stim and test boosting bases covered :thumbsup:
Goodluck