After many of hours of trial and error, I managed to get everything in front of the Premium hangar door removed. Actually, I moved it out side of the hanger. Included with this is the dds you see below and its matching normal map. Also, there is a PNG with the UV coordinates useable as an overlay in Gimp or your favorite image editor. You can use this to align the image you want to use. The image on the door is 525x335 pixels. You can find tons of info on modding dds files all over the net so I'm not going in to detail here. This works with the free premium hanger mod but... it needs to be installed first so the files are not over wrote in this mod. Unzip in to your res_mods folder and it should create all the proper folders (if they are not there already).
This is what it looked like before: And after the bars are removed: