Bugger.
I decided, after a while, to deal with this by pretending I'd intended it all along. A clean break with my past, I retroactively asserted, was clearly the best thing to do. I didn't need those ships anyway...
So, now I find myself in a dusty old Harbinger fitted out for long-range 'oh-I-wish-I-was-a-zealot' work - possibly the worst ship in the world for trying to escape hostile space short of a frighter, though at least than I could try it for the sheer brass-balls value - with two tasks to attend to.
1) Logistics
and
2) Finding a corp
The first bit was relatively simple. Two hours of liquidation and hauling (thank god, by the way, for the usable new browser. It makes hauling so much less of an eye-gouging pain than it used to be. I just head onto a webcomic, click 'random' in-between gates and the watch the systems fly by) were enough to put me back on my feet, plus I remembered where I'd stashed my all-important insurance missioning battleships. It's incredibly important to have at least one of these in case everything goes tits-up for you. Unless you want to grind Level 1 missions in an Ibis, of course.
The second part... now that would be trickier.