Have a one story ranch 2,000 sq. ft. what size heat and air unit will I need?

Its hard for anyone here to know exactly what size so when you get quotes demand the contractor does a Manual J (aka load calc). Have then show you the numbers and repost here if not sure they have it right.

And you are living in Point Barrow Alaska? Tent? Heating with wood?

Well a 2000 sf usually goes around 100,000 BTU heating. And I came up will 2.67 tons so a 3 ton ac unit. Depending on if you are to stories or 1 and also what type of heat you are looking at. Gas electric, exc.

Also are you on a crawl space or full basement?