Don't stress it. They won't get snagged. I ran 3 inch man a fre drop brackets and never had an issue with clearance. Run them and see what happens. I bet you never get rid of them.
The MAF brackets are beefy. And for the price much easier to install than caster plates. Plus you don't have to hack up the radius arm mounts on the axle. Iron man makes some now as well. I wasted a lot of time trying to fix caster until I bought the brackets. Never had a problem and never got...