In my mind the best buy in a new production double rifle at this time is the Merkel 140-2. Get one in either .470 or .500 NE. I bought a .500 NE last April and like it quite a lot. In the long run it is cheaper to shoot the .500 NE than the .470 NE if you reload, because the brass is much cheaper. Huntington's sells their "house" brand of brass "HDS" in .500 but not .470. You have to buy Norma in .470 at more than twice the price.

If you shoot factory ammo they cost the same.

You can find some attractive deals on the Merkel - less than $8k.

Good Luck,
CptCurl