Hi I recently purchased a Hana dna 30 and am using it with my aspire nautilus and love it. But I want to get into rebuilding for when I'm sitting at home because I know it has better flavor and vapor. Could someone recommend me a rda for around 20 bucks that would work good with my dna 30 and some good beginner builds. And could you also give me some tips on rebuilding because I have never done it before. Thanks guys and gals.