I recommend to find some assistance. Even one other person can help immensely at certain points.

I have built a 2-storey shed on a metal frame alone, and it involved highly inconvenient and more than moderately dangerous stages. I would not do it again.

I managed only because I relied heavily on industrial aluminum profiles for machine building (engineer’s Lego beams).

If you don’t have it already, get some mechanical help for heavy lifting and holding. It’s technically possible for a single person to do a lot, but not if they crush themselves trying to hold up something that needs a machine to lift. If it’s ever a fight, you need help, whether it’s a person or a machine.

Boy is this exactly the sort of “go down to that parking lot and hire a couple of ‘Mexicans’ (whatever country they really come from)” scenario that Trump is ruining in the US.

Should you live somewhere else, there’s probably unskilled day workers who would hold the other end for a pittance and a lunch, and skilled day workers who would be more expensive but would have the whole thing done by lunchtime if you’d just get out of the way, dinnertime if you help.

I say crack that box, and/or look online to find the instructions. If you know how to do what’s required, hire the cheap guy who will just do what you say. Still better than drunk friends who will argue with you. And he needs the money.

You got this fam. Fly me in if you want a hand

This is possible but will take some time and resources for the tooling. Quite a lot of time if you are short on resources.

Try and post! It’ll either be a cool DIY project documentation or the fediverse Grover haus. Win win

Get some additional hands, preferably with good brains, too. It’ll be hard to e.g. hold a wall frame upright while trying to screw it to the foundation.

You can probably figure out how, but actually performing the work entirely alone is going to suck. Even if just to move the large pieces around and hold/lift them in place; you’re going to want a friend to help out.

Years ago I assembled a small metal shed like 8x8 maybe, but this looks much larger so you should probably get help.

Without rigging or a gantry you would likely not be able to do it yourself. Think of what you would want were you constructing this out of long thin toothpicks outside: a gust of wind would move things out of alignment and you would have to leave your current spot to go readjust, that would still happen with the thin aluminum stilts/arches/siding.

That being said if you approach it with that in mind and are prepared to make hangman-style small gantrys or arms to hold things in place while you get to the spot to secure them then you could probably do it on your own over a few days.

If you don’t have the instructions don’t try to build it from nothing, go look for the same model online and find instructions so you can tell which bolts go where, and to get an idea of what brackets, holding arms, and loose tie-downs you would have to make and use to align things while you move yourself, tools, and ladder around the structure.

Probably not. It’s not going to be skill issue but no matter how handy you are, you still only have two of them. Not too long ago I watched a video of a guy setting up a single car garage like this on his own and he was struggling immensely.

You probably can but I’d hire a company to pour the foundation!

I believe in ya. Just dont skimp on the foundations.

I think it depends on the size of the building more than anything, and your ability to creatively lift things. Given the size, I think you’ll need help.

If there is sheet metal involved in the roof or siding, wear heavy pants and gloves with wrist guards and cut resistance.

You might be able to do it by yourself, but it would prob be a lot easier if you have a helping hand when spanning the supports.

It also depends on what you’re wanting to do with it. If you’re just parking a car or a boat in there I’ve seen people just use a gravel foundation with concrete footers. But, if you are wanting to make it a functional workspace you may want to pour an actual foundation.