Hi Guys,
Just a quick update.
@SamirD - I'm still waiting on the keyboards that I've been promised, I've been told there are 8 so should have something cobbled together sooner rather than later - sorry for the delay

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@VinnyCordeiro - The keyboard is indeed a black ISO layout. I've just taken another look at it and apart form being a little old it looks fairly clean. I just need to get it out the building so bear with me on this one.
Update on old bigfoot. I've done as suggested and found a lot of information on ret0brite and found suppliers of the chemicals i need, just a case of getting them ordered and finding some time to get the case tidied up, i may do more than one case depending on results so SamirD may have a more white than yellow board.
Rather than running headlong into making a new case, I've decided instead to try and replace the switches in this one, to spruce the old girl up some and give it a good clean - perhaps even order some new keycaps if the old ones don't clean up too well.
Once successfully restored (hopefully more like), i can then look at making a case or having one fabricated - may need some assistance on that but thats on the horizon.
Thanks
H