If editing for just the ps3/360, then you can edit the kills for goblins and bounties and just do a few more to gain the cheev.
BUT if editing for the ps4/one, there is nothing you can do about the 500 bounties though, the 100 goblins not so bad,
I have tested this and it does work.
When creating the Puzzle ring, just do "new item" then select "Puzzle Ring" from the ring drop down list, do not change anything in the properties tab at all or add stats to the ring.
1) Add a characters with a bunch of Puzzle Rings
2) Go into the game, open The Vault
3) After completing The Vault, save and quit the game
4) repeat steps 2 and 3, simple