DBG, get a cheap caravan for about £50, dry but tired-looking, and fill it with even more spares.....
Ron.
Even cheaper: keep the best example of everything you have, and write a schedule to fit them.
Take whatever is left straight to the tip. Trust me, you'll end up doing that in a few years time if you hold onto it now.
Sound advice Nick, at present I'm getting one spare of everything that's expensive or hard to find. Things like wishbones are readily available, and would be getting ripped apart to have bushes changed anyway, etc. But Coil pack, got a cheap one from a dealer selling old stock off, and various other bits similar, like cam cover gaskets, which saves me buying one at retail price the day min goes pop, it's a system that's saved me a few quid and many hours searching and worry int he last two years of Pissy being on the road.
There's plenty of other bits which do fit your criteria, however, spare headlamps and so on, which are on the 'fitting list' - a list which is currently only in my head, so I'll make an effort to get that made up this weekend. I've got a box full of junk left over from the big service I did a couple of weeks back, which will be heading skipwards. I'll see what else can be slung/given away!