Sounds like fun! My experience is, where I plan on putting my wood is where I have space. I started with a 70 x 12 concrete pad from a trailer that was on the property. That has been filled for the last year or so along with cords of about 2-3 cordss scattered in "drive through" rows throughout my yard. I have a hard time turning free wood down
and I don't even have my outdoor boiler yet!
Also, I don't want to have to move it more than twice if I can help it. Once to the property, and then next to the boiler
So, I would say give yourself plenty of room and let the Mrs. if there is one that you have the option to bring home extra if necessary.