Adam, Steve's old bumper is "custom" cut stock version.
Steve, I have seen several bumpers advertised as not being able to be used with a winch, your new one might be one of those. Would it work if you could cut the winch plate and have it welded to the bumper to make one piece? If it can be cut and welded you could lay some good tack welds, but I would have it done by a pro since the winch plate is something that you want to make sure will stay on good. I would think that if you had all the set up and prep work it would only be a few $$$.