Want to Buy 210mm Lens for 8x10

Looking to purchase a 210mm lens in a shutter that is capable of coverage on 8x10. Specifically looking for 210mm as I want to use it interchangeably between two separate 3D printed projects. (Polaroid 8x10 and BigShot clone) The cheaper the better, my budget it $200 or so. Let me know what you might have. Thanks!