Second all of that on the diesel. The Cummins turbo diesels that they put in those trucks was second to none. Run for hundreds of thousands of miles with little to no maintenance and pull down a house (or drive up one) if you want. I've seen several early-90's trucks with better than 300,000 miles on them being used to tow things daily.
I just wish they had put them in Ramchargers. That would have been a sweeeeet ride.
Now- that being said- if you MUST have a gas engine- the 360 is not tat much of a penalty over the 318, and has a lot more power. Also, the 93's were the first full year with the Magnum engine- so- even better if you can find one of those. And because they are now better than 15+ years old, they are at the bottom of the value scale.
Just my pennies,
CC