Looks fine to me. The RMG might decrease the durability of the EX-P as opposed to just applying EX-P directly over AIO. Other than that it should look terrific, and I look forward to seeing pics.
I was actually just reading up on 425 and I'm going to give it a try. I'm either going to buy some off a member (I know many people buy the 1-5 gallon) or I'm just going to buy a gallon from FK