The closest Yard analogue in knife size to a RAT 3 and a Becker 7 would be a Yard Keeper CG for the small knife and a Yard Guard or Yard Hook for the big one. The YKCG is .375 (That’s 3/16”) at the spine with a 4 ½” long blade. That’s your utility slicer. The .280 (above ¼”) thick by 7” YG or YH would be you prying and chopping blade, though either of them can also slice. All these knives are made of tough SR-77 steel.

The Scrapper 4 with a 4” blade of INFI steel would be closer in size to a RAT 3. But it’s hard to come by and expensive if you can find it.

(Thickness of the YKCG corrected by Eatingmuchface.)