Good stuff!
Remember, if it is the RIGHT gun, ANY price is OK! A guy who laughs at $1200 DE's will pay $2500 for a Citori because the shotgun is art in wood and steel, where the DE is just a big pistol. The guy with a $2600 Colt SAA in .45 will buy a $300 Mossy, as it is just a shotgun...
We all have our preferences, and values, and sometimes they make no sense...but they matter!
Glad your step dad is getting into them, and involving you!