I would just look for a used one.
At this point any old stock will have the batteries dead from non-use while used one can have them in a pretty good shape.
I bought my C12 set a year ago for $350 equiv and it was 6 yrs old with the original 1.5 Ah batteries. Both batteries are just fine and the drill works like new.
Had I bought old stock then for like $400 (the new chucks alone are worth $300), I would have had to shell another $120 for two new batteries making a good deal into a bad one.