Check and see what Roland calls their wrap material, otherwise, I think Generic Vinyl 1 would be fine. Make sure to use High Quality printing, might want to print a head test too, although I've had virtually no clogs on my SP300 cept for when the ink pump or something went out.
Edit: Thought 3651 was OraCal's wrap material, but it's 3951, I'd say just use Generic Vinyl 1