Ok, here goes;
Rear trailing arms £69.95 x2
Uprated rear anti roll bar links £ 29.99 meyle
". ". Front links ( not meyle. - custom made via an eBay listing!) £60
Negative camber upper wishbone inner bush set £110, via Bullettooth ( see his post re camber correction bushes)
Strongflex front bush set £125, from manufacturer ( easy to find their website)
Genuine alfa lower wishbones £90 for a pair
However... I dare not tell you how much I spent at my tame engineers! For rather boring reasons this had to be done fast....and my wife might read this! We spent far too long removing the original bushes in the lower arms, then machining the spindle was ...fun! and needed two shots at machining the upper wishbone bushes before I was happy, so the hours crept up....
But the results...are so, so worth it!
If you have access to a lathe, then you will be able to keep the costs down... However, the 'wagon already had Koni FSD dampers, and lowered springs, and powerflexed bushes, eibach anti roll bars and front / rear strut braces, so I have been gradually tuning her for a while....fortunately every tweek has been a genuine improvement ( not always the case when modifying cars, as I'm sure the more honest modders would admit!!!)
Hope that helps, happy to answer any other questions!
All the best