I have the GN kit (not assembled yet), which I will letter for SP&S (they ended up with 6 of these from the GN).
I had no noticed the huge number of caboose kits AMB makes in HO.
Well, we can keep hoping. The fact that they migrated another HO one to N is a good sign.
They make an NP one in HO that looks a lot like Robert Ray's 1200 series caboose and since he isn't doing his
these days, it would be nice if that one made the jump.