i have a 4,400 square foot concrete building that i need to paint inside & outside. the inside is mostly drywalled. i want to get a paint sprayer to do the drywall & concrete. is their any rattings on paint sprayers? i am new to do any repairs but want to learn & also start buying & selling houses & do the as much as possible of the repairs myself so i would like to get a paint sprayer that can do all kinds of painting, big or little area or thick or thin coatting for primer & paint. can anyone please help. i am new to even the easy stuff so please explain in great detail please. i can learn to do anything.

rick