How long is a piece of String?!
Until we have a chat and see what it is you need in your business it's not possible for us to give you a price.
There are a lot of variables.
What we can say is that the starting point for an engagement is typically €500
If that is too much for you then we aren't going to be a fit.
Even better is that is costs you nothing to talk to us. If then you decide to use our services then we will propose an initial 30 day engagement for a fixed fee. At the end of that time you can either ask us to continue and we'll give you a price for doing that.
Or if you are not happy with what we've done then we'll give you a 110% refund - that's rights we'll give you back 10% on top of what you paid us just for trying us.