Dont let your friends drive your cars!!!!

So my buddy got home the other week from paris island, I see hin today. he wants to drive my 5.0, he's not the best driver in the world, cant really drive a 5 speed that great, but does ok. So I let him drive around with me inside the sar, he finds an old street and lays in it, now I have 4.10's and bald tires, it spins really bad as it is. So he punches it and it spins, but he dosent even try to hit second, he rides out first until he's been on the limiter for a good 5seconds, then hits second. I mean the car wasnt even spinning anymore when he hit second. Anyway I was screaming at him, but he didnt budge his foot. So he pulls over i tell him to get the **** out of my car and I pop the hood, because i now have a VERY loud knocking noise, and my oil press is at 15psi.

The damn thing wont rev over 3k and now smokes like a chimney, and is shaking really badly, and at cruise it makes around 20-25psi of oil pressure when 5 mins earlier it made 60psi.

anyway he's going to pay for a new engine, so I have two options here.

rebuild my 5.0 block that possibly needs machined and god knows what else. (at least 2 weeks to get all the parts and machining done)

OR put my 351 block in there and just rebuild the shortblock, it doesnt have but like 40k miles on it with forged trw's and good rods. (new rings bearings, go to summit and get the oil pan and dist, couple days maybe?)

Let me know what you guys would do, besides kill the guy..

**** all I do is to try and get a ****ing answer out of some****ing body and get this ****...