they got rid of the autobody program here a L.C.C or i would have joined for that reason. I have a buddy who built a 68 chevelle that way he used all the grant money and bought car parts. He got away with it because it was his class project. It is bad ass and he got a "A" on it.and you want to talk about fast.I rode in it once could breath couldnt think he hit the gas and it was like being strapped to a rocket.
sorry back on subject i would have to agree with danielc a few small drops and you should be fine the baby shampoo is just what i have used in the past. I could see useing a SOAP would also help in some claening of the surface it might get rid of some of that old grime i would wash the shi out of it and try a color match wax see if that get you the luster you want . Like I said if you would like some help let me know i bet in a weekend we could have ready for a new paint job.also if you want we could try to buff it out i have a few diffrent buffing compound that i have had real good luck wit on newer car i have done my datsun in years lol it primer now i scotch brite once and a while and hit it with some fresh paint lol iam waiting on the right color.a deep dark purple with some metal flake or even some gold flake.