Anyone see any flaws in this approach?
To answer this, yes.
Many find the Pond Boss Forum once a pond has been started, only to learn of potential pitfalls.
Each fish species wanted in a body of water MUST have the proper environment in order to thrive.
For example, fathead minnows are stocked, normally in LMB ponds, as a forage fish for the future stocking of juvenile LMB and since a fish MUST have a food in the right size range to from, FH are useless as forage for larger fish after a year or two.
You want "large, crappie, catfish and pike"...great! Now, you have to set up the environment for each species PLUS how each will grow and interact as they grow.
For example, 40 pounds of fatheads stocked as forage in 30 acres is like using one bucket of water to put out a 10 acre grass fire....it might be done, but not without tremendous extra effort and risk of complete failure. Also, FH spawn in warmer shallower waters, structure in "deep" water is not likely to help them at all. If the pond is not aerated, these deeper waters become useless and even deadly in early to mid summer as the become anoxic (devoid of oxygen).
Your stocking plan is utilizing a cold water species as the ultimate apex predator...Is the lake spring fed? If not, they'll die when the deeper, cooler waters go anoxic, period.
Big bodies of water take big bucks to maintain and to get started right (FAR more money/effort to correct). "Common BG, LMB, CC" Stocking plans don't exist simply for the ease, they are what work, long term. You can reach any goal you desire, but ONLY with a lot of knowledge, a lot of experience/education, and "usually, a whole lot of money!
I like your ideas and species choices, but yes, it is fatally flawed as it is. It will take other species to support and grow the "target species" large, along with putting your structures in the PROPER places
