Seems to me like you don't have anything to lose by getting after the current wing with some harsh treatment. Even a bare wing would respond to hot water on a towel. I'd give it a go.
Try clipping a lengthwise folded hand towel on each side of the TE and pour boiling water on them. Give it 10 minutes and start bending and blocking it into submission. You'll probably have to over-bend it to get it straight. Once it is straight, I'd give it a week or two in the free state to see if it stays put. At least it'd give you something to do while waiting for a new set of ribs (or complete wing kit) to arrive.
Alternatively, you might experiment with applying CA de-bonder onto the joints and see if that might work. If you can get some nitro methane, that's supposed to work as de-bonder. That, or bash the crap out of it with a LiPo battery.
Steve