*adds a (slightly belated) vote towards the idea of getting an amp kit done in Australia*
I haven't even gotten around to getting my first BYOC (methinks the upcoming sale will be <i>tres fantastique</i> to jump on the wagon), but I would not hesitate in saving for an amp kit, should one be available. I presume we'd be looking at a small combo, then?
I agree with possibly using Aus Guitar Mag as a way to advertise and raise interest in it; you'd likely get a whole bunch of interest with that broad an outlet. As for helping people... perhaps a guide (ala your 'How to...' columns in AGM) or perhaps a small forum on your website?
But who *doesn't* want a small, portable and (above all) <i>good</i> little amp to practice on/record with/take to jams/noodle around on/etc.?
And if you've made it yourself, well... *whistles*