Help (shimano xt brakes)

Just built up a GT speed series BMX and put a shimano XT BL 8100 caliper on it. I thought the banjo bolt would be on the outside like the pic above but it’s located on the inside and at the current chain length (approx mid way) the caliper slightly touches.

Can someone point me to the correct xt caliper model like the in the above pic?

Thanks