Driving it home is a great way to add fun and memories to your stovebolt truck. Here's my two cents on the topic. Drive your 216 at a slow enough speed for the engine to just purr along - without very high rpm's. Stop and get gas when your tank has over a half tank full and you see a gas station. Save the gas in the gas can for an unavoidable emergency. Join the Inliners Club and they give you a booklet with the names and contact information of members all around the country. If you have problems and cannot find a local bolter, the local Inliners are friendly, helpful folks who will know about local parts and repairs for stovebolts. We did a two week tour a couple of years ago and visited many of the same places you are going in Utah and Arizona, driving our 1954 Chevy 1/2 ton 235, pulling a small vintage travel trailer. Driving a new truck with almost no chance of a mechanical problem isn't half as much fun completing your trip in a stovebolt.