SST, be real careful about pulls that are not in line with the hitch...towing hitches are designed for in-line strength, not for sideways strain. I've seen a hitch mount folded over from winching off to the side only a little. Personally, I'd change it for a permanent mount, but that of course restricts your options.
You need more than one snatch block for rigging gear. I've also seen beautiful winch installations left useless in many situations by lack of rigging gear at hand.
This is the basic set that goes everywhere with me, to support working with my Warn M12000. I have more, much more, available for special applications.