It looks like some links are missing or misplaced to use the “Build Your Dream Boat” links. All the premium boats and the Sabre go to the Lynx builder. Both Panteras and the Margay go to the Pantera Classic builder. Also, the Custom Trailer page goes to the Puma Builder but doesn’t actually let you build anything.
I do not know if it is supposed to be that way but it is tough to imagine the colors schemes of a PII with the Classic builder.