Engine not starting?

Driving vehicle on freeway engine light and oil light, check fuel and spark, found no spark. Replace distributor complete ignition coil, igniter after replacing distributor I got spark only on cylinder #1 note every time when I crank engine oil leeks very bad from engine from timing belt area probably crankshaft seal remove upper upper timing belt cover, distributor cap and valve cover. Notes camshaft sprocket turn over when crank engine but the rotor in distributor firm and camshaft firm because the bolt for camshaft sprocket loose. Now my question what you recommend set the timing and replace any seal lacking oil or I have valve damaged now. And how to set the camshaft to cylinder #1 after loosing timing.