Who made the rims? What style? I have a '65 Newport and I wonder if 17x8's will go on the back? I do have fender skirts though. Those rims look good on your Dodge.
With the proper care, you will get 100k+ more miles out of it. Just check the timing chain at about 110k and you should be good to go. My buddies van had 341k on it when he sold it. The 318 in it would not die.
SBC's are about as exciting as watching grass grow. The only thing that the magazines haven't shown is how build one under water. I had a 361 and the 383 does look identical though. Speaking of different engines, I think the poly 318 is a cool and different engine. Very reliable as well...
I did drive my '65 Newport everyday for over three years. I only parked it to do some work to it. Stuff that wears out over time and it did have lots of electrical issues. Still ironing it all out.
I have a '94 Corolla that I got after I parked the Newport. I drive a 108 miles a day round trip...