Insurance in CA

Hi. Soon to be proud owner of sprinter cargo van. Already reserved mine. I am a sole Proprietor and buying it to take advantage of section 179.

1. I plan to have the title in my own personal name.

2. The dealer said I need commercial insurance. Any ideas how much is insurance with a clean driving record.

3. Down the road I want to convert it to motor home and rent the rooms. Any ideas how hard would it be to go from commercial to RV insurance ?

4. Can I do RV insurance now and claim section 179 deduction ?

5. Do you recommend LLC to hold the title.

Thanks all.