Wanted - trem arm & trem cavity cover for Thunder I-T

It's probably a long shot, but as per the title, I'm after an original trem arm & trem cavity cover for my newly-acquired (thanks to forum member Ainsley Stones) 1984 Thunder I-T. I have a generic replacement arm & can botch a strat rear cover to fit, but I'd obviously prefer original parts if at all possible...

Cheers,

Kevin

I did these for my Spectrum a few years back; maybe they'll fit the Chunder?!?

http://forum.westoneguitars.net/t95-spectrum-backplate-and-wang-bar-m-ments

Cheers for that, Corsair - I'd already come across your earlier post & drawings, but I was just being lazy (& a bit anal...) in looking for an 'off the shelf' solution...

I have a 59-62 Strat rear cover that's just about perfectly-sized except that the screw-holes are slightly out, so I'll modify that in the meantime, & I already have a 6mm trem arm that works, but the original parts would be nice...