With some creativity you may be able to get 850 front shocks fitted (and thus take advantage of the aftermarket options that are available for the 850).

With some cash (~$3,000) you can get the factory lowering kit from Europe. One of the Turbobricks guys did this, but didn't install the lowering spring (indeed, I think for whatever reason... probably language barrier... he didn't even receive the spring). The car thus oversteered quite dramatically, and ended up in a wreck.

Doing custom whatever with the front suspension shouldn't be too hard.. doing whatever with the rear presents a challenge, as to deal with the rear spring you'd need to find the proper (dealer only) spring compressor and perhaps someone willing to fabricate a leaf spring (try finding someone to make a fiberglass one for an affordable amount... ha).

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alex