Amen to what is already been said.

I would suggest taking a trip to SCI or DSC this January if your are from the States. Most of the big DR manufactures will be there. This way you'll get to hold, shoulder and feel a lot of them and decide which one fits best in your paws.

I have shot a Chapuis and Krieghoff before I bought my Merkel. This one fit me the best. I didhave JJ at Champlins install a recoil reducer and pad on it.

Of the four your mentioned, the Merkel would me my suggestions. But! Also give Searcy serious consideration.