I am insured through Progressive. It is expensive and I plan to go with another company when my policy expires.
As far as registration. You will need a title and some way of identifying your vehicle. I used the Manufacturers Certificate of Origin. You will need to complete some State required forms. One of which is the declared value and the other is the application for cert of title w/o an exsisting registration. When I registered my SVM Cobra this April for the first time, I did not have to prove any value, etc. Use your best judgement. There is an affidavit you will need to sign where you state that the "vehicle is operable". This is to be signed by the builder. Kinda funny if you think about it. Some of the forms need to be notorized. Go to the State of Flordia Dept of MV Web Site
Click Here
This link will take you to the title app page in pdf format.
Click Here
Good luck and let us know how you do.