Here is a really difficult question.

Hoop houses are not the best long term thing.
You are basically making a semi-permanent hoop system, and then covering it with stuff that rots and cracks over time.
It is cheap and fast (compared to everything else.)

But really, framing a greenhouse where you have opening windows and a heat retaining wall, and proper eaves will be a lot better over the long haul.

So, what is your goal? Getting vegetables growing this winter?

On mowing that grass, well, you can stake a goat and move it around.
Its slower than you think, but you don't have to do much.

It all depends on what infrastructure you need to get building now.
A string trimmer is right now and right where you put it.

That chicken coop looks all nice and purdy, but it is really a pain, and only works for a few chickens.
That pull out bottom tray has to be cleaned out often. And that is a really shitty job.
Be sure to add a layer of hay after you clean it to absorb some of the droppings.
(make sure your chickens are not allergic to that hay)

Really, a working chicken coop is much bigger, so you can walk into it with your shovel and wheel barrow.
You just put down wire a couple feet into the ground so that things can't dig their way in.
And if you have digging dogs (coyotes) then that wire needs to be chainlink fencing.

Another thing you might want to look at is a "chicken tractor" It is a cage/hutch that you move around your property. The chickens eat whatever they think is good, scratch up the ground and apply a layer of manure.