Have stayed in 1200 loop and yes there are pull thru sites in the loop. Last time we were in that loop there were 2 new 40+' Prevost MH that came in and parked side by side. Turns out to be Grandma/Grandpa in one and Kid with family in the other. As long as you gave good info when you made resi. you should not have a problem and even if you find the site too hard to get into just ask for a different one.
Am sure you will have a blast, we always do. Will be back there in 3 weeks.
john