Design 3 posters for trade show booth

We are joining a trade show on Dec 6, and we are going to have a booth stall size 3x3 meter. Our company is distributing spare parts for motorcycles We need to make 3 big sticker posters to decorate the wall. (The design must be in Illustrator or the format ready for minor edit and print) 1 big piece for the back drop size 1.2 X 2.4 meter (hxw) I have a background for you to start with (see file attached : please don't use the dimension indicated in the picture) From background, I would like to put in parts (downloadable from the link below) so that it looks like we supply so many parts. Closer parts look bigger, and there are many parts laid farther away and we see them smaller and smaller as they are far and far away. (Parts can be download from the following link : [login to view URL] 2 smaller piece for the side walls (left and right) see sample files attached (*****need new design*****). 2.1 Showing Web picture on iPad size 1.2 x 1 meter (hxw) 2.2 Showing Web picture on Note book computer size 1.2 x 1 meter (hxw) Note that the reference website is : [login to view URL]