We build our own , the parts like leg holders, timer , solar panel, varmit cages , gel cel batteries are available at the academy store here , but there are other vendors on the parts. Yes that is a “shorty” we back up the truck to it .
About 125 to 150 in that one , we get barrels and legs free at work. If staked down ,the feeders last a good while ,8 to 10 years or so on timers most of the time , it is critical to have a good seal on the lid , a bit of moisture makes the corn/feed really a huge problem once it gets wet.
Beware of them crank up models, they rust up quickly and tend to fail at the cable and or pulley and have hurt a few folks pretty badly that were under them .