Make the page slightly larger than you need. Get the upper left corner very close to where you think it should be. holding down the alt/opt key, grab the bottom center handle and size it vertically until it is close. You may need to do the same with the top center handle, going back and forth until it is right. If you have to move the entire map, do it with the al/opt key held down to prevent grid snap. Do the same horizontally. If need be, add or remove grid columns or rows. It may look good to set the background of the page to black or a similar color to the map background Resizing H and V separately is much easier than trying on one go. You may not be able to get a perfect match—not all maps are drawn to conform. Close is good enough. Make sure your grid is set to 70 pixels per grid and each grid is 5 feet in scale. Use tokens that you have set on a 70px/5 feet page. All default tokens should be set on such a page so they will resolve properly on differently scaled pages.