jyank747:
I am looking for them to be a bit larger than 1 inch, rather 2-3 inch.
I would go to some on the production sites like DigiKey, Mouser or Newark and see if you can find one in the size you are looking for. I doubt you'll be able to find a 3 or 4 digit ones, so they will likely have to hooked up individually. Keep an eye on the forward voltage and current requirements. Bigger displays often have multiple LEDs within each segment which increases the total forward voltage.
One of my projects has these 7 segments for example.