I think the basic idea behind algae scrubbers is to have the macro algae outcompete the micro algae like GHA. So I assume your effort will be a success. Sounds like you're getting a scrubber by turbo. Hope,you share pictures and experience with it. I want to know how easy it is to maintain and how messy it is removing scrubber to remove algae. The guy, Floyd, seems to be a stand up guy with incredible workmanship.
I think the key to being skimmerless is to have another means of exporting nutrients. ie... Huge fuge, ATS, ton of live rock. I don't think you can go skimmerless w/o some means of exporting nutrients.
Skimmer is a piece of technology equipment that I think it is best to have. Not only I look at the performance of the skimmers, and experiments from many reefers with major success. Skimmer less tank is out there but not many cases of full SPS without huge huge or a lot of waterchange ( look at the reef hobby in 10/15 years ago when skimmer was new to hobby, look how many tank back there have full SPS, well established without one)
Another thing i wonder is which one remove organic and inorganic?