If I had the funds to buy all that prebuilt cover, I would have. Just having hook proof cover like that is worth it. My cedars have been on the bottom for three years now. I�m not sure what shape they are in, and they�ve grabbed more than a few hooks. I built four trees from left over five gallon buckets, and conduit. I could have used a dozen.
For a two or three acre pond, I�d consider getting one of the pros here to come in early and give you a plan. You�ll be making an awful lot of decisions pretty quickly. Getting as much right the first time will save you a lot of time. (still my most precious commodity)

12 yr old pond, 1 ac, 15' deep.
RES, YP, GS, FHM (no longer), HBG (decreasing), SMB, and HSB (only two have been seen in 5 yrs)
I think that's about all I should put in my little pond.
Otter attack in 2023.