Questions - Need some input

Does Anyone Have Any Videos of the New HOB Super Reef Octopus Protein Skimmers? I'm interested in purchasing one for my aquarium yet I haven't seen any videos to prove their performance. It's either these or I'm going to go HOB Deltec but I would like to compare the two.

I'm interested in purchasing the Tunze Comline Reefpack 505 for my aquarium because it has different equipment that I want to use integrated into one system. However, I don't want to have to put money aside for two months to purchase the system. If I decide to purchase each piece individually starting with the Protein Skimmer. Can I purchase the Tunze Comline Filter 3166 with the integrated Tunze Osmolator 3155 combined in the same unit separately? Or do I have to purchase the unit as a whole to ...