Well, here's the thing, as I see it...
If you like a certain look or color, then built it the way YOU WANT IT.
Look at me... I ride a Black Harley. How original is that? Don't care....I like black H/D's...always have always will. (yes I am a BIG Harley guy...actually a BIG motorcycle guy).
I got into this deal here because I have always liked SOHC Honda's, and a guy I met on another Harley forum started building racers...one thing led to another, and here I am...building a racer SOHC4!!
I am spending some big bucks getting the alloy CR750 style tank and seat...but that is the style that works for me....You gotta do it your way, or you will never be happy with it.
I hope you have fun with it! Too bad you are not local...I'd be more than willing to lend a hand!
This is exciting stuff! you are building a ground up CB 550!!
I really like the color on the frame! Make sure you use some foam over the tubing when you install the motor so the paint dosen't get destroyed!
~Joe