Wanted - 'B-0-T' active tone knob and toggle switches for Thunder I-A Bass

As per the title (and my post in the Members' Westones section), I'm on the lookout for an original brass knob for a splined pot (preferably a proper active tone one with the 'B<-0->T' etched markings). I appreciate these things don't grow on trees, but I'm happy to pay a reasonable price, or I have a couple of spare repro Switchmaster knobs (the 'TVill25' ones from a few years ago), if any swaps are preferred.

I also need a couple of replacement toggle switches for the 'Dual Tone' and 'Bypass' switches, if there are any knocking about (or any recommendations for alternatives).

Any assistance is gratefully accepted - at the moment the poor thing just looks plain fugly!

seen this
http://www.ebay.co.uk/itm/Westone-Thunder-bass-brass-control-knob-/232121833455?hash=item360b8a17ef:g:7rwAAOSwo4pYC0fJ

Cheers Damian - the game is afoot!

See it's gone....   where?

It'll soon be occupying the space at the bottom right of the photo I posted - thanks to your good self & of course Clive