Just trim. What's the big deal?
You'd be surprised how much trimming you can do and not even be noticeable. Also, you're going to rub, it's unavoidable. The issue is how much you'll rub, and is it too much. And I'm going to disagree with some of the previous posts. If you don't want to rub excessively with minimum trimming, then 3.75" BS isn't enough, 4.5" is about perfect. If you rub on the lower control arm, it's not a big deal as long as it's not excessive, I would not adjust the steering stops to limit the turning to keep it from rubbing. You'll loose turning radius which effects trail performance and you'll add stress to the drag link which has a tendancy to bend in the threads at the adjustment collar. If you want to minimize rubbing on the inside of the tire, then go with the 3.75" BS but be ready to trim a little more on the outside.
Blocks are not fine up to 2". A 2" block will severely shorten the life of the springs and contribute to increased spring wrap, if you don't have a traction bar. You can't just say others are doing it because you can't see how their rig performs or how long their springs are lasting. Any block will add leverage which will effect spring life and performance, but minimum blocks of around 1" won't be bad.
You need to pound down the pinch seams at the bottom of your wheel wells, and you need to trim some on the bottom edges of your fender flares. Neither of these will be noticeable to anyone looking at the rig. You don't need to raise the fender flares or remove them. Try it, and adjust, that's all you can do.........trim a little and add a little to the bumpstops.
