Yes, there is a grease tray under the cookbox that will require occasional cleaning, depending on how often you cook.

This broil-mate unit is manufactured in Huntington, Indiana.

Yes, definitely large enough for 1 or 2 chickens. A smaller turkey, around 10lbs would probably work.

yes, there is a drip tray to handle all of the drippings and grease. it requires periodical cleaning.

For painted surfaces, window cleaner works great. for the stainless surfaces, most stainless steel cleaners would work fine, or in a pinch wd-40 is good.

for the inside of the bbq, use only heat (pre-heat for at least 10 minutes), and burn off the grills when done cooking. Don't use chemicals inside the grill or cooking surface. A good stainless bristle brush to brush off the resulting ash and a periodical vacuum inside, and you'll be in good shape.

The Grillpro universal rotisserie kit, item number 60090 will work. It's available online or in stores.