Welcome aboard
Funnily enough we came back to LR from the same place you are, with the very same problem. IMHO, to say ni$$an were unhelpful is being kind.
Ours turned into a piece of absolute rubbish. Good Luck with them.
(also) IMHO, your choice of LR product should be down to how much electronics you want to get involved with. Defender Td5's have some, but they are mainly simple fixes - D2 TD5 have more, and I'd advise that budgeting include your own nanocom in the essential costs. L322 are lovely, but they are very complex, and can have many issues, and some of them can be a royal PITA - I have a pal with one, who has had all the usual suspects, and now has a battery drain issue, that isn't any of the "normal" causes, which is doing his head in.
We run D1's, both 300Tdi's, and no full authority electronics involved, which suits us. D1's rot for an occupation though, and unless you can weld, I'd advise you steer clear.
D2's are sometimes available for re-import ( from Japan, where they do not have road salt - thus no rust... ) - £6K will get you a decent one, but you might have to wait for it to come home in a container