£100ish for crank depending on exchange rate
£20 for spider
£4 for lockring
£60-70 for rings
:shock: Almost £200 and that's without the dedicated BB! Really wish I hadn't looked at overall cost now. You could probably get a current XTR chainset for that price.
If you've already got some 4 bolt rings then crank arms + the Middleburn spider might be the way to go.