The OP specifies that all 10 must be Action cards.
Also, I think Possession is a terrible idea! I would totally buy one against my big money opponent.
People keep suggesting new Kingdoms, but no one has pointed out anything wrong with my modified suggestion, perhaps because I haven't actually put it together after the modification. There is something wrong with it, which is that it has Pearl Diver, but I think that Workshop/Ironworks are better, so this might be the best you can do (with, as the OP stipulates, no attacks or non-actions):
1. Great Hall
2. Village
3. Walled Village
4. Feast
5. City
6. Pearl Diver
7. Monument
8. Throne Room
9. Scout
10. Outpost
If you want a totally useless Kingdom (with respect to buying provinces more quickly than big money) without any of the OP's stipulations, you can have
1. Great Hall
2. Village
3. Walled Village
4. Feast
5. Quarry
6. Gardens
7. Fairgrounds
8. Vineyard
9. Harem
10. Duke
I'm pretty certain that there is strictly no reason to buy any of these cards.