you may be able to find a set on Kijiji some people have the signature version referral one they sell on there at times. I was also looking for this when I moved, but ended up buying the 3rd gen 18 ft. It’s actually easier to use as the cables are much thinner, that swayed my decision as I used to have a gen 2. The gen 3 cable is much easier to use. 18 vs 24 I guess that’s the question for you if it matters. Also max 60a on gen 3 although that’s the max for M3 anyway