Looks like a nice clean setup!
I am on the second grow in the 7.5 gal SIP that I built in that tutorial. (I will try to post pics later). I actually made that 7.5 gal using the info from @CrunchBerries posts. I can tell you that it is my favorite design thus far. Super easy to build. Compared to the other SIP’s I have built. Super clean design. Super easy to get into the SIP to amend/add worm smoothies.
I am a fan of LST and end up tying branches down all over the place so this design is a bit awkward for that but I think I have figured that out. Now I just need a 3d printer …
I have been growing outdoor for a bit so I built a larger 12 gal SIP based off of the 7.5 gal design. I will post pics/DIY Tutorial on that one later also. The 7.5 g is way easier/lighter to move/manipulate and they fit great in a tent.
Can’t wait to hear how your plant responds when the power of that SIP kicks in…
I would 100% build yourself a few 7.5 gal DIY sips. You can easily get 4 or more of em in a 4x4 and customize the size of your reservoir etc… Shart… I will post the DIY for the new 12 gal SIP soon also. You can get 4 of them in a 4x4 tent also. They will grow monsters if you wish also. The 12 gal are a bit heavy to move but you can easily drain a bit of water off to make it easier to move em.
Don’t get me wrong I love the EB’s and what they produce I just hate moving them around or into the flower tent. They take up a bunch of real-estate and are heavy as F. Plus I can build a custom SIP to my specs for less $…Just my .02
I would also suggest checking out @Magrowers monster SIP’s post 
Happy growing 