The serial number seems to suggest your bike is a late '55. I am curious as it if it's made from parts from different bikes, or has been been mostly all together? The reason I ask is in regard to the handle bar mounting plate. I thought they changed from the curved sides to the straight sides between '54 & '55 (I have never seen a '56 with curved sides). The other thing is the straight seat spring. Weren't they all barrel springs by '55?
Note that member Bill Marcum has bike No. 11035.
It looks really nice. What motor number do you have? What is the number on your older bike?
I'm in Fort Wayne, Indiana at the moment, so don't have access to more of my records (been here since Monday, doing an audit on a supplier).
Mike Sal