Amazon Seller Help

I just wrote my first book this past winter and I’m ready to sell it on Amazon. I am pretty technologically knowledgeable, I am just lacking the time to get my account all set up, etc. I have a small shipment of books already in my possession. I’m getting ready to order another shipment from the printer that I will send to Amazon (will have FBA – fulfillment by Amazon). I am not sure whether the book cover will need an ISBN code or not? I have a few other questions also. I’d like someone who can both guide me and answer a few questions, and overlook everything to make sure the account and settings are all as they should be. I am a web designer so can do much of the work myself, but I just don’t have time to spend reading and researching all the little important details. I do want to offer a pre-order, that will be available starting May 1st, with the actual release day being toward the end of May when the books ship out. My goal is to reach the Amazon best seller list in my category, which is why I want to use the pre-order. So I am working on marketing this book launch and just need to have all the technical details in perfect order in advance. I would like to hire an experienced Amazon BOOK seller that can guide me through and educate me on this to make it a quick and easy process.