no probs, yes go for it mate, these are both excellent cleaners and as i linked above the final shine has sealant in it to seal the metal up, and yes the rimwax will go over the top fine and add more protection.
you use the green one first to clean the crap off with then the final shine removes any remaining crap and finishes it off.
go for it.
tip: you dont need a vast amount of these 2 when in use, a little goes along way.