There are a very wide range of 8x10 cameras that can be had used for under $1K. Look on Ebay, and at KEH, for options. Tailboard and "field" cameras will be your best bets. Kodak 2D's, Anscos, Burke & James and Calumet all spring to mind. You MIGHT be able to find a Tachihara or similar in that price range, but that would require time and patience to find one that cheap. A lot of recommendations will depend entirely on what you want to shoot with it, which you didn't say. If your plans are to never go more than 100 feet from the car, there are lots of cameras and lenses that would fit the bill. If you plan to hike 50 miles into the back country with it, that's a very different kettle of fish. If the camera will sit in the studio and never leave, yet another bunch of options will be good for you.
I'd start with just one lens until you get used to the deal because going up from 4x5 to 8x10 is a quantum shift - once you use 8x10 for a while, 4x5 will feel almost as small and quick and easy to shoot as roll film. Using 1 lens as a guideline, it is very easy to get a good lens for 8x10 for under $500, and the rest of the accessories with the possible exception of the tripod will also fit in that remaining $500. If you don't already have a tripod (and head) designed to handle 8x10 and larger cameras, you will need to get one. Lenses to look for? The "normal" lens for 8x10 is a 300mm. There are scads of small (relatively), light (relatively) 300 mm lenses that cover 8x10 out there. You may be able to find a modern 300mm f5.6 plasmat in that budget, or look around for a slightly slower lens like a Fuji or Nikkor 300mm f8 or f9 (it sounds painful, but the big lenses like that are actually reasonably bright on the ground glass) or a Kodak Commercial Ektar 12" or 14" f6.3.