I've created OOTPFin7. It's the simplest, sleekest and most effective version of the tool.
It's only setup for you to input for one team. But you could rinse, wash and repeat for each team in the league. Or you could use 6.5 to store critical information and then save the information generated in there each time.
I felt this was the best way to do it for people who want realistic numbers for their own team and don't want to bother with the whole league OR just to present the information and the setup in the simplest way possible for setting up your team's financial information.
Here's a screenshot of what it looks like:
That's it. You input the information in the brown area and the blue area generate the information that you input into the game.