Specs

hi new user here just recieved a it2 for my intruder the only problem is the person i got it from crashed it and it is bent i work in a metal shop so i sure i fix it but i am trying to get the measurments for it to make sure its straight i am just looking for the inside dimentions rail to rail i have found some online but i get different ans and overall length so i can square it back up I appreciate any help the kit i was given has the 12" wheels. I ordered the hitch kit on Fri from towpac any help would be great thanks