what is diameter of disc?
that adapter will not fit in your arrangment as the callper is too close to the fork so there is no space for the adapter to go. .... but if you calliper sits further out, there would be space hence as ^^^^ say, the disc looks like less than 160 mm
you would need a custom adapter for your set up; one that bolts to the fork then sticks out sideway with a lug for the calliper and then have metaj running alongside the caliper to the other lug (adapter in photo sits in betweenfork and calliper). kinda hard to exaplin without a drawing.