Reinob.
just bending the topic-direction a little...
Back to LXC.
I've done some cursory reading on LXC ..
I am completely unfamiliar with it.
What I read I like...
I think it may be the very thing to bring down a chunk of the massive overhead which will be encountered doing things the way I am.

After working away at the method I know...let's see how it turns out...

I think possibly tackling it... via your astute and timely mentioned LXC and integrating it into the process (instead of using virtualbox and adding yet more (Now that I know about LXC...) unnecessary weight in the form of the size and weight of the "guest" os which has the sdk on it..) may just be a very very very good idea.

From what I garner from reading on LXC....it is optimally set for ubuntu latest...so saying ...for as pain free a method of set up as possible.... it is a perfect candidate for Lubuntu (although I do see 'buntu as a easy ...candy distro...and it doesn't quite work with my idea of a "make-it-once-and-forget-about-it-for-the-rest-of-eternity" rolling release intent...I HATE maintaining...or "redo-ing" crap...and it WILL have to happen at the end of the support cycle for Lubuntu...and so it is the same old same old problem all over again in a few years. ).
oooh yeah..
I forgot ...
KKKKKKKand-ay
just wait a sec.
I think the brownies in my pink plastic Easy-Bake oven are finally done...
-"ding"-