I can make a belt for about £40. Here’s one I made a few years ago. I only make them to order, so I don’t have any images to share other than the one I wear.
I don’t recommend double prong buckles as they bend and are a fiddle to line up.
The one in the pic also has a brass d ring for clipping a dog lead to when you need both hands and can’t let the dog(s) go.
I can get nice heavy leather (3.5mm thick) vegetable tanned in Italy in tan dark brown or black. 38mm is best with jeans but I can make them to any width you prefer.
Hand sewn etc. Turn around is about 10 days. Let me know.