I need something that is similar to a tanto blade but as thick as a chisel

I have seen Razels ..etc. but really don't want to pay that kind of money. I thought if there is anything very close in hardware stores, and I work hard to finish it the way I like it, that would suit me well.

Chisels are close, chisel tip is there ( althought it is at 90 degrees ), the side can be sharpened into a blade, but there is a two inch part between the handle and "blade" that can't be used or shapened. Actually I need this tool to be as short as possible ( blade no more than 3 inches. )

If I start with a knife, the blade is there and I can cut it to 3 inches and 45 degrees (tanto style) but then the blade is not thick enough for chiseling and prying. Some painters scraping knives are the right size and only need sharpening, but they are not thick enough.

Cutting and sharpening a cleaver will do the trick
But that is waaay beyond me and my small DIY workshop

I am not looking for expensive stuff. I need something cheap and rough to use around the home & garage.

Any ideas ?