Well, it was apparently HIS choice to fence in that large of an area without consulting your preferences first...
Seriously. There is no big problem. Essentially you will have chickens "not quite free-ranging", or anyhow loose in a very very big pen. There is nothing wrong with that. The chickens certainly like it!!! It is good for them. It's just that you have to accept that they will not be entirely immune to hawk attacks, and because it can't be predatorproofed as well as a small run can, you will really, really wanna lock the chickens into a good predatorproof coop every night by dusk without fail.
So I think you're FINE as far as the area goes, it's just that it sort of necessarily puts you into one style of chicken-keeping rather than allowing you more choice of styles.
Now, that said... I don't mean to sound negative in the following or to cause further stress to your marriage LOL, but little hutch-type things from
TSC is not necessarily the most economical (nor safest) way of creating a coop for these chickens. I don't know what climate your in, but they are not real desirable for northern-type winters; they often contain chickenwire which needs to be switched out for hardwarecloth; and for the same money, you could knock together something simple YOURSELF that would be larger and better designed, or get a secondhand shed off Craigslist to convert. I'm not saying you can't use them, but OTOH if you can still return them it might be a good idea to think carefully thru your options before you do something where you CAN'T return them
Good luck, have fun,
Pat