Recommended ZR-1/C4 shops in Twin Cities MN?

[jp91]

Does anyone have a favorite maintanence/repair shop in the Mpls/St Paul area?
I'm familiar with DRM, and have been there for ZR-1 specific issues.
Any other ZR-1 capable shops?
Any places that just do basic C4 stuff? Brake flush, etc.

Thanks,
John