how8.com
Notice that it has the old formula for salaries, now salaries tend to be a bit higher but for the potential cap purposes this is what you need to get an educated guess whether player is hitting the wall already or not. Ignore Free throws and stamina, they dont raise a salry of a player although how8.com formula thinks otherwise. Same with experience.
There are also some skills costing nothing for some positions as long as their weight is not great enough to change the position of the player. Best (suggested) position by BB, you can play him wherever you want of course.