What would I have to be weary of?
Well, you should be wary of the history of that car. Imported cars are to be treated with suspicion. For a car of that expense, you should have very complete records.
And understand that this is a $100K+ car when new, and Jaguar built it for a very well-heeled client. They did not make anything easy to service and all systems are highly complex. There is no attempt to keep service costs anywhere reasonable. Many people buy expensive cars once the depreciation has kicked in only to become frustrated by repairs and service costs.
All parts will be priced high and you will be forced to return to the dealer for most of them.