Just to echo/footstomp what Grigg said. I tried going the all-original route, too, once ...
The good news is that you have cured any boredom problem you may have had for the forseeable future -- looks like many, many,many hours of fun there....

The best advice I've heard in situations like yours is to stop at this point and check with your State DMV to see what will be required to title and register this truck. Do not listen to anecdotes or stories or advice or any of it from anyone other than the professional staff at your DMV. Their answers will help you decide how much further you want to go with this project. You will no doubt have a bit of a project just to get the truck titled. Best you find out now, rather than after you've sunk a lot of money into.
THEN, once the DMV has helped you make an informed decision ...
Think long and hard about what your ultimate goal is for the truck (to help you decide how to proceed). A couple of thoughts to ponder (from my own painful experience...) It is best to decide now because down the road it will sure stink if you dumped a bunch of money into that 216 and decide that you really wish you could actually drive the truck to events or even just around town.