This probably sounds weird but the only thing I don't like is the basic concept of it...

You are a pretty successful NLHE cash player...
you want to broaden your experience ...
therefore...
You're going to play HU SnG's?

I'm just not sure that there are many (any?) transferable skills here...

HOWEVER from your post you seem to be:
- good at poker and properly bankrolled (can drop $1000 without being broke)
- organized and dedicated
- committed

So basically yeah it looks fun and like a good idea, and I get the impression you know what you are doing. I'm just wary that this might negatively affect your cash-game profitablility if you start (even subconsciously) moving the skills of 2 handed SnGs to a ring game situation.