Can a 48 foot hightech race car hauler and sleeper tractor be registered as a motor home in California and what is the best way to insure this rig stored 300 days a year and driven 10k miles a year?

Overall length for a single unit in CA is 45 foot If is in a company name it is a comerical vehicle in a personal name questionable se secttion 391.2 of the Federal Motor Carrier Saftey Regs Arlen F Fadely affadely@mindspring.com