Whatever mortgage you take there will always be Notary fees and stamp duty to pay. These costs are unavoidable as the mortgage has to be transferred to you.
The arrangement fee is a different matter. It all depends upon the ‘deal’ you are being offered. Sometimes there is no arrangement fee, sometimes it is reduced (for instance 0.5% instead of 1.0%). Always get a competitive quote just to see where you stand.
I hope that helps