When I requested if some documentation could be provided in advance, I got this response from Stark Future.
For the Stark VARG EX, the necessary documents for registration, such as the Certificate of Conformity (COC) and Manufacturer’s Statement of Origin (MSO), will be provided with the delivery of the motorcycle. These documents are essential for the registration process in the UK and other regions.
Due to the sensitivity of these documents, they are not provided ahead of delivery. Once you receive your VARG EX, you will have all the necessary paperwork to proceed with the registration process.