Home Defense Shotgun & Well Pump
You sure you can't do the well pump installation yourself? Surely somebody here has done one. If not see if there is a youtube video maybe out there.
On the home defense shotgun you only got to spend $200-$300 max. My first preference is the Mossberg 835. Takes 3 1/2 inch shells. 3.5 inch shells of buck shot are devastating to a group of thugs. 00 buck with 15 pellets at point blank? If you can't find a Mossberg 835, go with a Mossberg 500. Pump shotguns are usually super reliable.
just my .02 cents...