I am looking to purchase a "Big" Pop Up Blind with a floor to keep critters out. I want one that is Big enough for me (6'2" 250#) and the kiddo. I sat in a friends pop up last year but it was too short to stand up and windows were too low so I was stooped over the entire time. With bad knees and bad back it was awful. Any suggestions or experiences to help me make a decision?