A quick note for anyone else that it may benefit in the future. Silca NE38 key blanks are a perfect fit for the D2 locks.
I’ve Obtained some cheap spare key setups by picking up used fobs off wrecks and then having the local lock smith cut NE35’s to suit (they charge $12.00 per cut including the blank). Means you have a seperate key and fob but that’s fine for me.
Originally went this route as found the key blades that fit into the case sold online are too thick for the locks on either of my D2a’s.