This build is fantastic! You sir have some serious skill, can't wait to see this bike finished. Do you know what wheels and tires you will be using? The ones you have in the photos seem don't seem strong enough for the speeds this bike will see. Also what do you plan to do for foot rests and shifting?
Just a bit of suggestion here but the forks seem too long. I was looking at the photos and I think if you flipped the rocker arms over and around it would make the fork look a lot shorter and more proportional. What Im saying is put the longer side of the rocker toward the bike, and the short side toward the front. Then turn them upside down to resemble more of a "u" rather than a "n".
Keep up the good work, and please don't be offended by my constructive criticism.