Exactly! My total monthly expenses are less than $250 (rent, food, internet etc.) and it should not be a problem to devote 7-8 months for building promised apps.
Understood, but it's money that's already been spent. I just wanted to point out he'd also need some other form of income to support himself while he makes the apps, even if it's only $250 a month.
If everything goes alright and nothing unexpected comes up, that amount is going to come from my savings. I know it's a risk but I am willing to take it.
Good luck! You seem to have a lot of ambition so I bet you have a good shot at making it work. Maybe you can take orders for $5k apps while you're making the $1k apps!