Wow, your 1/3 scale Pup is going to be a monster! Do you intend to build it essentially "stock" or will you be making scale modifications as you go along? How scale is the BUSA Pup's basic structure anyway? That's always the first place I start. I look long and hard at the kit as compared with the best technical drawings I can find (and of course photos of original aircraft) to find how the two differ. And they always do. Then I decide which non-scale features I can live with and which I can't and start making plans to change the things I don't like.

Why not document your build here on RCU and that way you'll get tons of useful advice along the way! I've done that with my last two builds and can't imagine "going it alone."