Chapuisarmes, I was unaware of a second Merkel agency in Australia.

Homer, a dealers licence isn't dependent upon an engineering background either!
Do you have "actual experience" with either the Merkel Helix or Browning Acera?
The barrel attachment to the receiver may be similar to the Sauer (in fact it's closer to a Sauer than to their own KR1) but the elephant in the room is the straight pull action.
Do you have "actual experience" with modern straight pulls?