Cost to become a Owner Operator (Start UP) LOCAL

Hello,

So I might be venturing off to become an OO for a local gig here in CA. I have some years driving big rigs local. My main question really is how much for start up cost ROUGHLY will it take to start off. I have some money saved up, my truck I want will cost about 29K-35K I plan on putting at least 40-50 % down, I know I will need some personal expense's put away like paying my mortgage maybe couple months in advance, I know I wont get my first settlement at least 20-30 days out, one of the other OO said his diesel payment is about 2K per month, insurance is about 6K per year, but what about CA #, DOT plates all that stuff? What does it cost? What other first time payments should I be thinking about? I really appreciate the info. Thanks.