I wont start businness with renting van,how much will be insurance

Hi peter77, and welcome to the forum.

Not possible to answer that one, peter77, your insurance premiums depend on too many variables which no one on the forum can possibly know.

I'm not even clear whether you want to know what the insurance will be if it will be you who is renting the van, or whether the business will consist of renting the van out to others for hire. If you're renting the van yourself, the van hirer will tell you what the insurance will be. If you intend to rent out the van to others, then you would need to talk to some commercial vehicle insurers to get an idea of cost.