Here are my thoughts take em for what they are worth.
First Mnfish pond is not the typical pond and has no largemouth bass in it currently.
Second the man and his people fish this pond like crazy.
So what that means is he is capable and devoted to intensively manage this pupppy. Typically recommendations for ponds are based upon the what the owner is capable of, not what fish will do on their own once stocked.
In this situation I like Pike better than Muskie, because my experiences show catch rates of pike to muskie greater than 10 to 1. I stock lots of pike and muskie each fall and have the privilege of monitoring closely the fish populations of many of the lakes that get stocked with these fish.
So Im all for his original plan of putting 10 northerns in there instead of three and I love the attempt at keeping largemouth out completely! So for your situation just simply remove the pike when caught once it reaches about 28 inches long.
keep the total population at about 10 fish or under and simply put them in and take them out as needed. maybe you find out that you need to get some out and then just lower your size limit, maybe you find out you could add a few more. Find a good taxidermist to start decorating your cabin with home grown "trophies" or simply eat them.
put them in and take them out, you have control. Adjust the program as needed. no worries of ruining your pond, pike reproduction is extremely rare in situations such as yours.
going into fall of next year, maybe consider adding 50 lbs of trout to the mix to have some good fun ice fishing and to push some serious pounds on the pike over winter. (but then you'll have to take em out come spring!)
I have many experiments going with pike and muskie in small ponds and they are just alot of fun. people just catch the pike way more than the muskies in every situation.
