Running an overclock at 4.5-4.9 has more to do with just cooling. You can also get there with a good air cooler, but since this is a watercooling forum, I think we need to start from the beginning.
Why are these 2 your only options? It's kind of an apples to oranges comparison- there isn't much similarity.
well im ording all my electronics soon and i want the best cooling i can get in the 140-170$ range alltho i can go a tiny over tho . those 2 kits are the best from what ive seen if theres better for this range of price id certinly like to know its gonna be for a 1155 i52500k