@Aniruddha , we currently do not have an option to order this via our online shop, but you have some other options:
email us using contact form and request a custom order of those parts : https://www.modalai.com/pages/contact-us download the CAD model (https://developer.modalai.com/asset) and 3D print the part(s) yourself or order them to be printed. We use MJF material for these parts.Sorry for the inconvenience. We will look into making the spare part ordering process easier.
Alex