Davidoli,
The price I got quoted for was 245 all round. Yep, £636 give or take the pence. However, you can have ANY selection of four. So the staggered setup would also qualify.
I will find out what the larger rears would be tomorrow. I expect slightly more, but not much.
Echo39, thus far, am buying (ordering) 6 on Friday, so another two would be fine.
As your a member, it would also mean you could get them fitted at your local instead of having to come to the midlands.
For comparison I did call and google a few of my usual haunts. Nice to know this price is much less that what some places buy them in for