HG on a k-series isn't bad though if you watch them and catch em early. Also iirc an Uprated gasket is available that helps prevent the issue re-occurring.
I suspect it's the same engine as in daughter-in-law's Rover Streetwise, alloy block with wet liners, plastic inlet manifold, HG failed on Emma's car before she met Ben, and a roving mechanic replaced it with the new 'superior' laminated stainless steel gasket. She was always topping up the coolant, and she kept it going until Tom was born, when it stood unused for 4 weeks. Then engine would not start, or even turn over. With help from this forum I found water in no. 1, so took it apart.
I found the cylinder liners were flush with the block, not proud of it, so replaced the gasket with an elastomer gasket, as advised by Streetwise Forum. Car is still holding coolant 14 months later. HG kit cost £80, easier job than on Jonny's Omega 2.2.
I drove a Freelander in Canada, nice car, Kate. I hope it lasts you many years.