Home of the North Pole Santa School, July 7 & 8, 2018, in Longmont, Colorado, USA
The only costs are for my time. Once I see your files I can give you an estimate of the time required and my fees.
There is no other costs until you order your Proof Copy. For a 200 page book, that should be under $10.00, including shipping.
From then on you only pay for copies you want to personally sell or give away.