Hi,
If you use Excel on your MAC, I think it could be an easy to use platform for this tool.
I will define an area on a sheet where you list the players' names, their positions and their prices.
Then there will be two other cells designated for min and max total cost and a button that spits out all the possible combination.
The description is quite straightforward. My only question is when do you need it?
Regards,
Balint