Budget shotgun new ... Mossberg 500 0r 835. Not the prettiest girls at the ball but go bang when you pull the trigger. Gun shops
or pawn shops for good used ones. Make sure they can handle steel shot.
Waders ... wait a couple more paydays and get breathable if you can possibly afford them. You won't be sorry.
Decoys ... shop the bargain barns at Cabelas, Bass Pro or Mack's for new, Craig's List for used.
Dog ... look for a retriever club in your area for amateur trainers who'll help you or find a pro and volunteer some time
throwing birds for him or her.
Wife ... FLOWERS ... LOTS AND LOTS OF FLOWERS !!!!!
Good Luck !!!!