I finished the seat pans tonight, thanks for all the input this past week. So now I am reading about the doors and the channels that make up the door frame and the covering channel. The directions make a statement to set the covering out to match the cowl thickness, sooo did you wait to do the door frame after you had the firewall forward and the cowl installed? So far the build has been straight forward, although I have had some questions, but this part seems somewhat confusing to me on the procedure of the steps to do first. Did you really install the door handle assembly before the door was hung, I must be missing something here in my thought process, any help here would be great.