I agree on the suggestion of getting the truck weighed. Just so you know. And it's easier than removing the bumper and winch just to weigh them separately!
And though I always hate to say it, in this case I would definitely not recommend our stock height front coils. As a variable rate coil, the initial rate is quite soft for a good street ride. But that characteristic would probably allow it to sag down at least 3/4" which puts you right back where you were.
I would either go with the taller 2.5" coil right off the bat (because you're already almost 2" over stock in the rear anyway) and risk sitting a tiny bit low in the front still, or get a coil designed specifically for a winch bumper such as BC offers.
It will have a stiffer rate of course, but that's the compromise. You can't have heavier weight and add softer coils and get everything to fall where you want every time.
Glad you thought of our coils first, and we could still get you pretty close with the 2.5" version, but you would almost certainly use up most of, if not all of, the initial soft rate coils from the additional weight.
We might be closer to where you are, which will save in shipping, so that's something to consider, but maybe before you make the decision let us see some more detailed pics of the underside of your rig. Rear springs and axle setup specifically, but any other pics of the front suspension and steering as well might help.
Thanks
Paul