i am a pre-press specialist and have all knowledge required to help you as well.
will give you a final (POD) ready to print files (with correct bleed, margins, color profile, embedded fonts and correct colour for printing "100% text black, CMYK or special Pantone spot colors .... etc.) and as all websites requirements as each website (Amazon, Ingramspark, Lulu, Creatspace, ... etc) has special specs required. and i can handle this professionally.
i have finished many of projects like this before, please check my profile. also can help you to place the ISBN (message me)
Kindly my quote is a vary and would like to check your files to confirm my bid.