Looking For Aftermarket Items For Trumpeter 1/35 Tiger I Late

I am getting ready to start the above mentioned kit and want to find a couple of things:

  1. A covered muzzle brake, or a barrel with a covered muzzle brake;
  2. A bow machine gun with a dust cover.
    A US supplier would be best. Any help would be greatly appreciated.

Sprue Brothers - DEF Tiger 1 muzzle brake covered

And for the hull MG…here:

Sorry wrong tank but could be usable.

Atak has a zimmerit set for the AFV Club Tiger I late that comes with muzzle brake and MG covers, but I’m not sure how would it fit Trumpeter’s kit.