Custom swale cutter

So last year I saw a video of some people in Africa I think cutting swales using these hoes that had extra large heads. Couldn't for the life of me find one so I just made one myself. Here are some images of the beast which I use for cutting back sod and putting in swales. It has a ten inch width and works really well for sod, but stink in rocky ground. Anyone have any idea where I could find one of those long handled hoes I've seen others using with the extra wide blade? I would still get one, I think they are slightly curved as well.

I've always called the big heavy ones "Grub Hoes" but Lehmans sells something like what I'm thinking, only they call it a grape hoe.

https://www.lehmans.com/product/european-style-grape-hoe/

Rogue hoe makes several sizes.

Thanks. Checked Rogue Hoe and that is awesome. I remember using one when I did wildland firefighting, but these are extreme. Totally asking for "the boss" for a birthday gift.