Larry, I saw the FOUR 1/144 Morser (54cm and 60cm) kits at the LHS last weekend. Only about 7 bucks each, too. Not Karl, but Loki, Odin, Thor, and Ziu. They come with either a bunch of figures (12), a Pzr III command tank, or a Panther command tank.
And lots of PE!
I've collected ALL the Kaiyodo World Tank Museum vehicles!
There's a million of 'em!
The candy that comes with 'em is tasty, too!