Hoping to restore this 1975 Ford F500 Bucket Truck -- It runs & stops!

We bought an old bucket truck at auction from a small town in northern Arkansas. It was in rough shape so we had to tow it to our location. It runs & stops, and we&done some work on it since we got it, but it&got a ways to go still. The city workers familiar with it insisted the truck odometer was accurate at about 14k miles, but pointed out it was worked only in their town and the engine was well-used because the engine had to run at high rpm to run the PTO that in turn ran the boom hydraulics. We love old cars & trucks, and I particularly like&in "stock" form, so we see some potential in this truck. We plan on repairing & restoring it to a safe working condition, so it will not get a complete restoration (not for show). Nevertheless, it is already usable in its present condition, so we can use it for tree trimming at our locations.