Yes you can have a street plate and a green sticker. It is called dual registration Dmv sec 13.130 http://dmv.ca.gov/pubs/reg_hdbk_pdf/ch13.pdf
This is what I was talking about and what I think I would like to do

2 sandrails 4 fiberglass projects 2 sportster projects   

Manx Club #4516

Norwalk, Ca.