Get the '60. Have fun with it. You should drive one before you buy of course, but buy it, it'll be fun. Once these are baselined, they are very dependable rigs. Of course if you want a V8 or diesel, it is cheaper to buy one already that way. It does cost a pretty penny to do a swap unless you are very mechanically inclined and have a nack for finding cheap parts. I love my diesel and I drive my family all over the place in it. We went to Alaska last summer. Had a blast. These are great rigs that will take you anywhere. Good luck on your decision.
Chad
Chad