Checking on the water pump pulley... *shrug* I've had my 2pc set on for a month now, not a single problem at all, of course I had it professional installed with an impact gun torqued to specs. As long as you torque them down hard, there shouldn't be any worries at all about your new UDP set.
I have the FC 2pc and I love them. BTW you should just do it yourself you can go buy a impact that plugs into the lighter in your car that works just fine. With that its easy and you'll save probably 100 or more to have them put on.
tools? u need a lug wrench, 15mm wrench, and a 10mm wrench if im not mistaken. its easy. the fc is decent, the bolts tend to come loose on the water pump and they are hard to get pretty tight because the pulley moves when u tighten it, easiest way is to get the belt on, pull down on it while u tighten them to keep the pulley in place, get them on the best u can, and check on them after driving for a bit. i lost 2 of my bolts and almost the whole pulley. had to go to a ford dealership 45 min away for new ones. so yeah, def check on them. i just switched to the afx pulley myslef. the car runs smoother, not too big of a dif in power though.
i went into a local ford dealership, talked to one of the mechanics in the garage, he looked at it, said he'd do it for 20 bucks, took him about 30 minutes, handed him a 20 dollar billr. Best bet is finding a big dealership with the proper tools and paying them under the table, if it's not busy and they have the time, they'll do anything to help someone out, usually.