Yes, sorry Gem but it doesn't work like that. In some cases if you'd been married for years and he or you were very wealthy there are settlements that can sometimes be made outside of CSA but in this case it'll be CSA because no one knows if you'll change your mind. Your dd is two now so in six years time she will start getting very expensive indeed. And as a teen... Phew! You'll need that £200 and then some!
It doesn't make him any more or less the father. Children aren't pay-per-view. The contact arrangement is made according to what the parents decide (with such a young child they won't ask her) and, hopefully, what is best for the children.
Nothing you've said about the way he spends his time with your dd is particularly alarming I don't think. There is no professional in the land who would say that your dd is better off without dad in her life. Although that's not what you want to hear.
There is quite a lot written about children of around 11 wanting to know why they don't have contact with an absent parent. They blame the parent who has been there and you will need concrete evidence that you did what you could to keep her dad in her life or that there was a definite reason as to why he would have been bad for her.
I've been in the position where I've had to hand my 18month old over to her dad who had a stream of very young girlfriends through the flat around dd, frequently left her at his mums to go out on the piss, never bought her clothes (I once discovered that she was wearing a sweater with the neck cut with scissors to make it fit) or brushed her hair. He let her watch things like Dr Who which I found unacceptable. But she loved her Dad, would have NEVER thought him a babysitter, and after years of persevering, and letting him fail, then letting him try again, he has married a wonderful woman, has a close relationship with his mum who has been like a very lovely third parent to dd really (fifth if you include her two step parents!) and we parent kind of in parallel occasionally crossing over if we need to update the other on something or if we have a concern. His contact has grown from one day a week to almost 50/50 now and I enjoy time with my husband and my friends and I can focus in my career again.
It all seems desperate now but kids are resilient.
Good luck with it all x