Are there any AM sets for this kit?

I'm not aware of a Mk II model (3" howitzer CS weapon). However given the rare nature of the S-Models kits, no PE maker would go and issue a set for them -- the SModels Staghound Mks I and III came with a small Aber fret, I believe.

Now that Bronco and Italeri have theirs, you may find some parts to be useable on the SModels resin one.

Roy, you are correct my kit is the mk III not mk II. Since I got my kit through a club raffle, I don't know there was at one point a PE fret, but there isn't one now, but since there are frets for other manufacturers, I will see what I can do with those. Thank you