An addiction means you do all of them. It's a good option.
You're going to have to be careful with the numbers as those numbers could mean anything in regards to Mozart's sonatas depending on which editions. An actual K number is more accurate. I'm fond of K.332 in F major which may be the No.12 you're referring to.
Eberl sonatas are better IMHO.
Haydn or only Mozart? K 330 (10).
I am surprised no one has K310 in A minor. my favourite sonata from Mozart
Do the K.3XX series first, probably?!