That’s how we did things until we got our sheep working equipment (used) several years ago. We bought the drop gates, end gate and sorting gate. The long chute has cow panel sides, the short chute has hog panel sides. It’s put together with T-posts. The equipment is made by Premier.
Look up Premier sheep equipment to see what they have. Before we got ours, I used pallets for end gates and cow panels. I put boards through the holes to separate sheep, it wasn’t great, but better than nothing. Before that I used the chase and flying tackle. That didn’t work too well for me. LOL
You will need to load sheep in a trailer some day. Use this same idea with cow panels narrowing down to load in the trailer. Our trailer has a gate that the whole gate opens or it has a small sliding gate within the end gate. Before we figured that out, we haltered and dragged sheep to the trailer. LOL
Having the sheep equipment makes it so easy, I can work sheep by myself and I’m 66 years old. My husband helps and that makes it even easier. I found ours on Craigslist but have also seen it on Facebook marketplace.