I would love to follow closely with your plan, but I have a few technical difficulties with that.
First, I only have 3 hens, and with my luck on Shipped eggs, Hatching out Hundreds would be costly (Hundreds of chicks, for what I am sure would be many, many hundreds eggs).
Secondly, Growing out a few hundred takes a lot of space, which I don't know if I have (I could probably do 100-150 with the current set up).
Thirdly, and MOST importantly, I have to subscribe to the slow and consistent approach to increasing my poultry numbers in order to maintain Whole House Happiness. My Wife is amazing, but the only way I can get to hatching out 200 chicks, is to prove that I can move the extras when there is only 40 or 50. If October rolls around and there is 100+ birds on the property, the happiness level would decrease dramatically.
Framac
Well, "thirdly" is clearly the most important! You need to have support, at the very least. If you can hatch off 100 - 150, I think that's fantastic and much more than lots of folks are able to do. Promise her you're only keeping the very best 5 of the 100. The rest will taste delicious if you're able to dispatch/eat them and, if not, hopefully you can sell them as pets. The VERY best thing you can do is cull extremely heavily the first couple of years - you will be EVER so happy that you did in the following years!