Welcome to the group . You missed a letter in your distributor model number . it is IAP-4102-1 . For the D30 , D31 , D32 ( Canada ) . The Auto Lite part numbers are ; cap IAO 1003 , rotor IGS 1016B , contact set ( points ) IGP 3028 ES , condenser IG 3927G . Ebay is a good place to search for Auto-Lite ignition parts . I like the old NOS parts better than the new replacements from China . If you want to order the new replacements just give your distributor model number to Roberts Motor Parts or Andy Bernbaum Auto parts . Perhaps NAPA Auto Parts too . If you should need other part numbers for your distributor just let me know . On the manifold gaskets , PROBABLY that Desoto gaskets are what you need , but I could be wrong on that .