I was personally responsible for stocking our 200 Lake in South Carolina in 2013. I reached out to the DNR and they said because our lake of 200 acres was not opened to the public, they could not get involved. They did however give me clear guidance as to what should be stocked in the lake and how many of each species . It cost the HOA over $16,000 in 2013 and it was well worth the money as the population of fish is very healthy. I have the list of fish species and how many of each we stocked if it would help anyone, I can post the numbers.
We invited the DNR to our fish Club meeting and He answered questions ranging from fertilization of the lake, what structure to put in the lake and where, and even gave us a 1 year, 3 year and 5 year plan.
We have shown the DNR the spider blocks we are going to sink in the lake (made from from old orange fiber optic pipe), and they told us they will last almost indefinitely and we never have stock the lake again, once the structure is added.
I have started to tag all the largemouth bass I catch, and the DNR said they will work with me to determine what size fish and how many should be removed each year to grow bigger bass, which is our main goal. So far I have tagged 65 Bass and most of them are in the 1-3 pound range.
If you get the right DNR person, they can be a wealth of guidance and knowledge and it's free.
Good Luck