I know PhoenixMotorsport are very big on tool supply and rental and they are currently doing a fair bit of stuff for the X5 although it's not on their website yet.

They manufacture Polyeurethane bushes and suspension components such as anti-roll bar kits, lowering springs, camberplates and a strut brace as well as a few other parts like drilled disc and pad kits.

Maybe worth seeing if they do Poly subframe bushes and have the tool?

X5Girl.xxx