For Proline I'd look at the SlideJob and Inversion. Not cheap and for both tires, particularly the inversion, the available compounds are rather soft. Still, the treads have potential, the SlideJob having block-style pins grouped very close together and the Inversion has a low-profile, road tire-esque tread.
JConcepts offer slick-like tires with a slight tread on them: the Octagons. They also have slicks without any tread, as do Sweep tires, but slicks might not handle dust so well, like worn tires
If that doesn't work, maybe stay on the lookout for used tire lots? If I go driving on tarmac I just use up a set (or two) of tires that are worn for track use but still have a little profile left on them...