For a first double in .470 or .500NE you should strongly consider a Merkel from the used market. They are excellent rifles and great value for the money. You should find one for less than $10k and quite possibly less than $8k.

I have a Merkel .500NE, which by number is the third they produced in that caliber. Drive up to Virginia and you can shoot it.

Move up the ladder with your subsequent double rifles. The money you will save on the Merkel is a good start for your second double.

Curl