Perfect composition for a continental team with 18 riders?

What is the perfect composition for a continental team with 18 riders?
How many of each specialization?

? x Sprinter
? x Climber
? x Puncher
? x Fighter
? x Northern classic
? x Stage races
? x Time-trial
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18 TOTAL

The objective would be for the team to win as much money as possible in a season.

3 Sprinter

3 Climber

2 Puncher

2 Fighter

3 Northern Classic

3 Stages races

2 time trial

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18 riders