Nice idea. I've just send them an enquiry.
If you are in this for the long run, try to go there in person.
I have found the customer service in the shop to be much more reliant than via E-Mail. Also, you can see their actual designs/check their patterns.
I am thinking that maybe you will want to go with the standard Cafe Racer with custom stripes rather than the Eaysy Rider, once you see their jackets in the flesh.
BTW: I am absolutely with you re JL; they make great jackets, but as a first time customer, I have never felt them to be really forthcoming.