Trial assembly to see what kind of problems I need to address to make the Suzuki GT750 forks work.
The result? Surprisingly little. The Enfield triple clamps are about 3/16 inch narrower, so I'll have to slightly alter the spacers on the axle. The calipers are self-centering, so I don't think I need to shave thier mounts to make them work with the fork legs being slightly closer together.
Of course, this is after I cut 26 tpi BSC threads in the top of the Suzuki stanchion tubes, cut the hex head off the top plugs, and threaded half inch pipe plugs into the resulting hole in the Suzuki plugs.
In the process, I came up with a solution about how to support the frame on my cheap hydraulic motorcycle stand so I can work on it.
There's a footrest rod poking through the rear frame tubes, with a bar clamp holding that end of the frame to the stand.
And my solution for concealing the identity of the forks as Suzuki items.