None of those have a campaign included that has anything to do with WW2. To get WW2 you need to buy the Normandy map and assett pack, or else you'll fly in a non WW2 environment.
For me the payware DLCs are the only reason to buy into DCS:WW2 (as you don't fly online), so I would plan my purchase accordingly.
I suggest the P-51 + Normandy + assett pack + Bunyaps campaign for that plane to get you started.
If you absolutely prefer Axis planes, the Bf-109 + Normandy + assett pack + Reflecteds campaign.