Hi Paul,
I am down in Essex, sounds like once you get the bearing replaced, you should be fine, tracking could also be slightly out tho.
I paid around a grand for the suspension kit from Extreme, including the offset wishbone conversion, but as I live down a potholed lane, I am thinking of getting air ride. If you haven't spent out on suspension yet, I would recommend air ride, EBay around £995 ish.
I could get a template drawn up of my wishbones and suspension top plates, if you have a competent fabricator who can make them, then just get them to skim down your spacers afterwards?
Or someone may know a place you can get them from pre-made?
Cheers
Alex