The plan sounds good Trent! And yeah, if you aren't sure if you want to move in the future, making everything semi-permanent is a great idea. If you're not opposed to the pegboard, that would be a great place to store nets and such! Looking forward to seeing more updates to your fish room :)
Heck yeah man super excited! i havent had to set up a fish room for a customer or myself in a couple years kinda jelly lol itll all go good man your chuggin along takin it step by step, you got this!