IMO - it's not a good idea to combine range finding and binoculars.
They're two very different actions and deserve their own devices. There's a really big reason most range finders are monocular. Quick target acquisition. You can keep both eyes open, put the monocular up to your eye and be on target quickly. Their usually lower magnification, again aiding in quick target acquisition. The glass isn't as good because you're not using them to identify targets at long distances. Range finders are small, light, and easy to hang on a lanyard or stuff in a pocket with one hand usage being a major feature. Remember, you may be holding your bow with one hand, and you need to range an animal with a single hand.
Binoculars on the other hand, heavy, bulky, not intended for one hand use. They ARE more difficult to acquire targets with especially at shorter ranges. They cover both eyes, which is great for definition and detail, but not great for being quick. Higher magnification is great for seeing animals details at distance. Not good for quick up close target ranging.
Combining those two devices generally costs more than buying two different devices and usability is less than ideal.
I highly suggest not getting range finding binoculars. Buy good binoculars, get a separate range finder.