23 yoF with 1 mos digital ulcers, hair loss, sicca Sxs, dysphagia; No sclerodactyly but finger tips cyanotic w/ distal pitting scars, ischemic ulcers, periungual erythema & dilated nailfold capillaries (no hemorrhages). +tests for ANA, Ro52, Ro60 and Scl-70 Abs. How to treat?