I'd suggest starting small and cheap. Buy a good 4x5 Crown Graphic press camera and put a 150mm studio view camera lens on it instead of a press camera lens. This will give you plenty of image circle for the limited movements such cameras offer. It's relatively light, fairly cheap, and easy to set up and focus. Buy some film holders and a few boxes of T-Max 400 sheet film with the savings over the 8x10 and have at it.
8x10s are heavy, bulky, and slow to use. Setup and focusing are critical and take time and care. Wind and vibration become your mortal enemies. You will get more "keepers" for a lot less cash with a press camera. If you decide you need the bigger negative, trade up. My bet is that with 4x5 and a fine-grained high-speed film like T-Max 400, you will have everything you need, and you can carry enough film and gear for a day's shooting in a single manageable package.