It's good to buy local. You get the parts you need, help the guy out and keep him in business, and make a friend that can offer advice and maybe even a helping hand when in a pinch. 
Buying Allis parts localy
Bought a fender, choke rod, hand crank, and a set of refurbished head lights for my Allis Chalmers C. Cost me $ 55 and a 30 mile drive. I'm buying local if he's got what I need.
55 and a 30 mile drive. I'm buying local if he's got what I need.
