the difference isn't gonna be a big deal.

order in plugs for a b16 motor. b16 plugs and b18 plugs do differ.

get plugs and wire for the si, distributor cap i'm thinking is going to be for an obd1 b16a motor. so get 'em for the del sol vtec

obd1 b18c1 cap may work also.

as for the MSD, i dont' think you'll need it anytime soon. stock ignition is pretty damn good. if you were boosting it then maybe upgraded ignition.

just get new cap, rotor, plugs & wires to do a good tune up.