In my opinion, the only thing a Clymer, or any manual but for a FSM is good for is to put under the side stand to lessen the lean angle. Get a good KHI manual.
As for the correct orientation of the front caliper. For the A1-A2, 1977-78 is forward of the fork mounted to the LH side. Many US bikes have been converted to dual/twin disc. For those years and including the 76-77 Kz900 the calipers are universal and will mount LH and RH, but to mount a caliper to the RH fork will require a LH bracket from a trailing (behind) set up. Also the brake splitter should be changed, I’ve seen dual bango bolts used to stack dual brake lines on a single line splitter, the correct way is to replace the splitter. MC will need to be upsized to 5/8” or 16mm.