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abuzavi had his done in Heidelberg, if that's not too far for you. You can see his results/thoughts here. And I'm sure he'll answer whatever questions you might have. Give him a PM.
My Buddy ordered a BRG MCS with a black roof and when it came in with a green roof Pentagon Car Sales tinted his windows to make up for it. The tint turned out great and was done outside Ramstein Air Base at a place called ABC. Mathius Hemmer at Pentagon can vector you to them.