Hi,
It seems like you have already made up your mind. :lol: That skimmer is not very good, if you do any research you will see that the performance is lacking, the pumps do not pull a lot of air and several mod's are needed to get it to perform. As stated before, the skimmer is a vital part to having a successful reef tank, if I wanted a 265G reef tank that will eventually have thousands of dollars worth of coral/critters in it, I would not buy the cheapest skimmer I could find. When purchasing a skimmer keep in mind that a lot of manufactures overrate their products, you see this practice more so on the lower priced products so it's important to remember that a skimmers handling capacity is more about bioload than water volume. The second skimmer you have listed required a pressure rated pump in order to perform as designed and is very inefficient in regards to the amount of power consumed. I would go with the skimmers previously recommended to you but in the end it's your money and your tank.
Good luck,