Regarding the Carlsbad twinplate on e-bay, since the braze ons will keep the purists away from it, I say buy it and ride the heck out of it. If and when you decide to restore or repaint, keep in mind that those braze ons are very easy to remove, thus restoring it to it's originality.
Wish it was my size.
Jay Sexton
Sebastopol, CA