You want the guy to buy a $200 push puller? Remember you are one of the only guys with all that stuff at your disposal. That method has the least amount of leverage of anything mentioned. Don't pull the heads yet. Soak thru plug holes, push by hand in fourth gear. Listen for any bad noise. Check tranny for neutral position and clutch shifting. Start with that type thing first. Crenwelge does know his stuff but has more equipment than Gas Monkey Garage.(which is also in Texas). Whatever you "pull" you better find gaskets first, on that motor. Tell us this is not an automatic. Tell us how long you think it was sitting after the event on the highway. I assume the clutch/tranny is not locked to the motor somehow or you could not have loaded/towed it home without dragging it.
Somebody like HRL would know how to look at the Dizzy rotor and the valves, peek at the pistons and tell if it slipped timing, on a motor you can't rotate, without taking much apart.