Asking for a vehicle specific allowance to reinforce the stock arms would probably be an easier sell than aftermarket performance arms with added adjustability. That said, there could be some update/backdate parts from the last model years of the first gen Mini that would help. I know there was an aluminum rear lower arm available on some of the Cooper Works cars that was stock in dimension but better material. A similar part was incorporated on the next gereration cars.
Tom Broring
Wash DC Region
ITA Nissan Sentra SER
HP Triumph Spitfire
HP VW Rabbit
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