Hey, I am a new member here and I am building a Stalker classic r. After research I came up with the same parking brake calipers that you used and was about to start sorting out getting a mounting bracket made. Now that I see you have already done the leg work I was wondering if you would be willing to share your drawings and numbers? By the way all the photos and information you have posted in this forum are helping me out a lot with my build. Thanks