For the base stealing question, you can refer to this thread:
As for your second question, about budgets, here's part of the problem with that:
Year one: you decide to go with an advanced scouting budget of 18m to see pretty accurate projected ratings. You cut and paste projected ratings of all the players in the world into a spreadsheet (takes around 45 minutes to do). The next season, your bring your ADV down to $2m and use that $16m elsewhere. Now you still have the benefit of $18m ADV (via the spreadsheet) without spending the money, and can probably run that way for a couple of seasons before biting the bullet and doing it again.