Honestly if you can handle these works, I don't see why you couldn't tackle the sonata. From what I remember the first movement wasn't too bad (depending upon which version you play), though there are certainly still sections that will take some work (the development in particular is pretty nasty.) Just remember your good piano fundamentals (relaxation, weight transfer, etc.) and you should be fine.
Not a huge fan of this piece anymore outside of the smarmy (and gorgeous) slow sections in the first and second movements.