This is a timber and ranching area. The big ag source here is the Farmer's Co-op, which has a big store that stocks small quantity ag chemicals (under 5 gallon or 100 lb. bags), lots of pump and plumbing stuff, western and work clothes, and a half a dozen warehouses full of tanks, culverts, drain lines, implements, etc. They have a yard out of town that sells bulk chemicals, feed, hay, seed, etc. At the end of the year you get a check for your share of the profits.
About 20 or 25 years ago Coastal Farm and Ranch came in. They must do good, because they closed the first store they built and built another 3x the size. They sell some fittings and hardware, hoses, etc., a lot of clothing, and are a good place to buy discount firearms. It's where I bought my Mk III. I picked up a 3-point sprayer at auction that needed new hoses, and Coastal had good high pressure hoses in stock.
TSC recently built a store just off the freeway, the first one I've seen in this area. It's not a big store, only about 100x200, so I don't expect much equipment inventory.
The Co-op has a shop that rebuilds pumps. NAPA will fab hydraulic hoses. I don't expect any farm store to be a 1-stop shopping experience.