I am the guy Nashvillerover mentioned. I am in Miami as well, and have been looking for a DII for a while and have gone back and forth on what I wanted. I was looking at 04s almost exclusively because of the things mentioned elsewhere on this forum. I have a bit more of a budget so I was looking at lower mileage examples, even considering early model LR3s. I have the number of a shop that does LRs. I will PM you his info, he is in Medley. Nice guy, though he talked about LR3s as being one of the most problematic Rovers, and I might go against his advice and buy one anyway.
No offense, but if I remember correctly, the comments the guy you referred to didnt exactly make a lot of sense. I am not sure I would trust him for a prepurchase inspection - or maintenance at all.
Check bushducks.com. They have a mechanic's page where you can look up repairshops geographically or by specialty (restorations, mods, certain Rover models, etc.). I am sure there are several in Miami. Too big of a town and too much money not to have some shops.