Agree with the above advice. We snagged images of the amerigo
logo and found a number of vendors on eBay who will make custom decals for you. We used several different people as we didn't know who would do the best job...so we spread it out. They all did a fine job.
My suggestion: get those images snagged, and find yourself a vendor or so on eBay. E-mail them the images and see how it goes.
You could also hire a local artist / auto decorator to reproduce the swooshes. Ask at nearby high schools, vo-tech auto programs, and auto paint
I wish you good luck; it'd be a lot easier if the company would be more helpful, wouldn't it!?
WHEN you succeed...and persistence can pay off...will you send us pics?