There's no going back. Trim yours and look for take offs if you ever want to go back to factory I guess.
Next option would be mce fenders and save yours, still plastic. Little over priced. But half the price of poison spider. Allows you to put your factory back on. No nutserts.
Last would be ps. Really heavy unless you get aluminum, 1200 is way too much imo. Not flexible and could cause body damage if hit hard enough. Plus you have to deal with nutserts.
I would trim the factory first, but that's one of the draw backs of running bigger tires.
Here's another way to look at it, even if you add taller springs, your bump stops haven't changed. Your tires will still stop at the same place. The moving the axle back has many problems associated with it. Let me look for this thread we had on it. If you're interested.