This is rather disturbing news Ali, and unless there's a huge number of people writing to MPs to get this stupid IMO legislation reversed, it seems we'll just have to work around it.
Thankfully the Freelander was available from 97, so there could well be a way around it, although somewhat inconvenient to have to convert another one. It's also possible to swap everything from a facelift to a pre-2001 FL, so it'll look and feel like a later one.
I'm wondering if it's possible to simply get a conversion re-registered using the self built vehicle route, although that wouldn't be without it's own problems.
It looks like it might also fit in the category of a Radically altered vehicle route.
https://www.gov.uk/vehicle-registration/radically-altered-vehicles