You are getting way too deep and skipping several other things.
When you into a dealer with that kind of item, they will just skunk you on something else.
Regs in CA are fixed and cannot be changed by the dealer
The 649 will be included in your captial costs.
I dont know what you mean by TLR, what is that term? If this means taxes license and registration you cannot as taxes depends on the car brand / bank used.
Usually the term is TTL, but TLR works