My experience recently is also that you don’t need an MOT to register. Once the duty has been paid, you can then send paperwork to DVLA and include a V112 form (from memory) to get exemption. However, the DVLA did ask for an inspection……not a problem as they just send a representative. This was really just to check chassis numbers correlate to paperwork, with no additional expense on my part. Make sure the paperwork is as accurate as possible, without errors, as this will save a lot of time in the long run…….it still takes forever though! Good luck.
Charles