I like the hoop coop design for meat birds and runs. It is cheap and easy to drag around. You can make it with cattle feedlot panels and wrap the base with hardware cloth. Chicken wire may be cheaper but it will not keep anything that is hungry out so you loose money in the long run. Because of the snow in your area it would be wise to consider having your coop raised off the ground by 2'+ and having the space under as part of the run. You want the coop and run to have a sloped roof (2 sides or just one will work) so the snow load can come off rather then sitting. If you do only one slopped roof make sure that the high side is high enough to allow proper snow shed. You would want the high side away from the direction of the wind and this is a great place to put wire for ventilation. If you do the 2 sided slopped roof then consider eave vents. The attic fan is a great idea if you have a lot of wind in your area but if you don't have enough wind to push it then it just becomes a fancy tiny hole in the roof. For both the hoop coop and the run for a regular coop you can cover it with shower curtains. They are cheap (on sale or at a dollar store) and waterproof. I suggest not to use tarps unless you get the super heavy duty ones as they tend to block out light and fall apart quickly. Also, with the snow keep in mind that if you don't have a covered area near the entrance then there will be a lot of shoveling first thing in the morning just to let them out. Make sure that either your coop is high enough to reach in and clean or it is tall enough for you to walk in to clean. This goes for runs as well. I started my first batch of broilers in a tractor and quickly built a hoop coop instead because it was too hard for me to clean, feed, or water them with it only being 2' high. I suggest not to use sand in your coop. Don't get me wrong, I love sand in the south but many people in the north say that it turns into a brick in the winter. You will want to think about heating the water if you don't want to change it out several times a day in the winter. If you do a search on here for water heaters there are a lot of threads about what people use and how they have fixed their problems. I suggest not to use the water cups because the lever in the bottom can freeze in whatever water they leave in there. Stay away from ceder chips for bedding it is not good for them. I like poop boards under the roost (12" past the roost bar on both sides) because it keeps most of the coop cleaner. Make sure your roosts are removable. Wild birds bring lice and mites and chickens sometimes poop on them, at some point in time you will have to remove them to clean. I suggest to start your med kit with poultry dust or sevin 5%, nu stock, vaseline, blu kote, and a good box of gloves. I will ask about good white egg layers, I only have blue and brown. There is a lot of info on this site and sometimes it can be a bit overwhelming, don't be afraid to ask.