Which mons we should keep in bag for raid

As raid become popular, I think it's time to discuss which mon we should keep and how many. If we need power them up, just for raid purpose, how much cp should we power them up to. Dust is rare.
3 flar 2600 cp, 3 ice lap 2200 cp for grass type
3 vap 2700 cp, 3 rhydon 2900 cp for fire type
3 egg 2400 cp, 3 dragon 2900 cp for water type
3 egg 2400 cp, 3 vap 2700 cp for ground type
3 rhydon 2900 cp, 3 rhydon 2700 cp for ele type
3 egg 2400 cp (psy/sob), 3 egg 2400 cp(psy) for fighting and poison type
I don't have good fighting mons, so I use
6 egg 2400 cp for normal type
So, you need
3 flar 2600 cp
3 vap 2700 cp
3 dragon 2900 cp
6 egg 2400 cp
6 rhydon 2700 to 2900 cp

For lvl 30 trainer, I already have the most. Will this team be enough?
Thanks

Ps: as tm is there, so IV is priority. Assume all mons have best move set