My name is Barry from Esign Design Inc located in California USA. I have several 1988-1990 Mitsubishi Vans USA model.1. Is MD099389 cylinder head the same as MD099388 cylinder head?2. Is it a direct replacement? 3. Do you sell complete cylinder head assembly or just cylinder head only? please reply with best price including shipping to California USAThanks, I look forward to your reply.Barry