Selling 700 two gram bags per year for 15 years in an illegal state without either having to deal (expensively) with the law or gangs is unrealistic. In most illegal cities there are already extensive and long time weed distribution markets existing. 700 bags a year is more than two a day, you'd have to be connected in grade-high school markets, college markets, working class markets, suburban markets and numerous others. That would be five or six employees right there, highly trusted and well paid, needed.

I'd bet, with your age and the current climate of decrim and home grows, your actual profit on this venture would be around $20k at most.

That said, growing and selling is fun as fuck, risky for sure but in most cities the law turns a blind eye on it. Good luck and i hope i'm wrong about the profitability for your sake.