What would it cost to have a camkit installed along with new springs and a double roller timing 3 piece set on my olds 403 engine engine is still in car?

What would it cost to have a camkit installed along with new springs and a double roller timing 3 piece set on my olds 403 engine engine is still in car?
a lot could come to play are you going to do it or have it done do it your self 300-up pay some one700-up