Brute,
The problem some dealers in WA are having plating bikes is on new ones. You have to have an existing title in your name to get it converted, they cannot get it done on the mso or if the title is not in the dealerships name which it never is.
As far as plating them all you have to do is go to a licensing place or online and get the 2 forms, then once everything is met (dot tires, headlight, taillight, brakelight, 2 mirrors, horn and reflector) you can take it do a dealership who can charge $100 to sign off on the inspection. The shop does not have to be certified, just a legit shop but what is keeping some from doing it is they have to sign off on the liability. After they have signed off and you have signed off you mail in your title and the paperwork, give them a cut and good to go!
Glad I saw this because I'm plating my 500 supermoto and was wondering what to do about lighting it up, right now I just have the little moose 35 watt, thinking that 100 watt would be the ticket! Or maybe one of the new lightweight powerfull batteries that are out and put it on a trickle at night, then the little 35 watt could give it a little charge. Not like I'm gonna be riding it distances!