I'm not 100% sure of the course, most of it I've never ridden. The course from earlier in the year was super-fast and flowy, so I'd imagine it's similar. I like the 1 lap idea, pretty cool. There's also a map on the site.
I forgot mine for the Neshaminy race. I played dumb at the reg table and figured they'd just give another one. Once I gave them my name they looked on a sheet and found my number. They gave me a new plate and wrote the number on it with marker. They did not charge me.