Whilst being as helpful as possible which I know you are all trying to do.
I think perhaps you have missed a point.
We don't all have £500 to spend on kits and maybe only want a few or even less kits which are perhaps unavailable or cost prohibiting in UK.
A purchase club among members would be my suggestion maybe one of you bulk buyers could offer to tag on a few items for those who are less comfortable buying abroad.
Shoot me down if you llike it's just an idea.