Some one may be able to help more but I use this link http://www.rcgroups.com/forums/attac...mentid=1403151 often times to locate the decal that I am looking for and print it out onto decal sheet or save the image and take it to a print shop with a large printer and have it made up. you can also have a print shop or a sign shop make it in vinyl!
You can scale the decal to size or have the local print shop do it. They normaly only charge a couple dollars for their service and are glad to help.

That link has a ton of insignia so you will need to search a little. Good luck