I guess you could see if they would tell you what bike the forks etc are off of. I doubt that they would but you never know. I see they have a contact on their web page.
Basically you could put anything you want on the front end as long as the angle on the frame where the front triple tree goes is the same or close & you can adapt the bearing differences between the two bikes. You'd have to swap out everything off the doner bike: front brakes, wheels, forks, triple tree and then do a lot of fabrication work yourself to make it work.
It would depend on wheither you wanted a daily driver or a show bike. Some folks swap out the gl1000 front end & put it on the cb 750's to getter a stronger & firmer front end. Maybe somebody that has done other than the gl1000 front ends willl come along with some ideas.