Does anybody have any ideas or tips on the best ways to paint or dye rubber fuel lines or hoses?

I have some ideas on how to make a stencil with the correct "KV" letters spaced the same as the original hose. I'm not sure about the best way to "paint" the KV on. Would white aerosol vinyl dye be best? Since my Duster 340 has the ECS system I'm looking for a cheaper alternative to the correct looking "KV" stenciled hose.