I think you misunderstood, my intention is to start an idie game project at first not something overly "official", unless I'm mistaken those typically don't require all the legal prerequisites you mentioned above.
The plan of starting a "company" and making an office is a plan for the future, not now.
But anyway, in case I'm mistaken thanks for the pointers, and I think it would be a dead end for me here XD
The best way to start any business without a real budget is with hard work, if you don't want to work hard, don't try to run a business.
If you can't afford to pay people up front, do the work yourself (You can do it, the only question is if you're willing to)
If you lack the skills to do all of the work yourself, either obtain the skills you need or get a business partner who has the skills you lack (ask your friends, strangers are unlikely to care).
If you get a business partner, even if it is a close friend make sure you have a written agreement. (Having a lawyer write such an agreement for you will reduce the room for misinterpretation and doesn't cost much and thus is a good idea)