I expanded the rosters to 20 and will be as follows unless there is serious objection...
2 QBs
2 RBs
3 WRs
1 TE
1 K
1 WR/RB
2 Team Ds
8 Bench guys
You can check out my scoring system... I think it's rather standard... basically turnovers are worth 2 one way or the other, TDs are all worth 6, passing yards 25/1, rushing/receiving yards 15/1, and a fairly standard defensive team points allowed chart ranging from +20 pts to -20 pts depending on how good or bad your defense is.