Agree with Bourbon and MikeC -- There's a few of us with AD 1-Tons who drive them a fair amount and find them to be decent drivers in stock configuration.
I echo the sentiments above -- get it running safely and reliably the way it is and see how you like it (give it a fair shake) before you spend a lot of money on upgrades. You may find (as most of us do) that it is just fine (and a lot of fun) the way it is.
One upgrade you can consider that's fairly cheap and easy to perform, is switching out the rear axle center section to get a little bit higher gearing (for a little more speed in traffic). Check out our tech tips for that one. Make sure your brakes work, first!
Good luck!
John