The only concern is if the new kettles have holes located differently than old kettle's holes. If they are the same, and $1 says they likely are, then compatibility of the new lid bale is assured.
OR
Let's say the kettle hole locations are now a little different and that ClubChapin's old lid bale isn't "sprung" a little bit. It all still seems to be within an acceptable range of compatibility and work just fine.
ClubChapin thanks again for being our guinea pig. You were also the one that retrofitted electronic ignition to yours, right?