Why should it bring any issue? It's like buying a car isnt it? You don't know if it will cause you a problem till you have it, LOL cost more to tune? Now thats funny do u not know this engine is identical but stronger?
Difficult to sell? I don't think so with the amount people that come offering cash to me, even still am not thinking about selling now just spending, tuning, and grinning 
Why should it bring issues? Your swapping the engine from another car...into yours...an engine your getting off ebay(i think). I know its going to bring issues from the countless threads on the subject, from the people who actually planned the process correctly and still met walls.
You know if a new car is going to cause you issues because you can test drive and you get a warranty.
I have a feeling i know more about the engine and associated costs than you do and im not even planning a swap.
I'd give your insurance a call BEFORE you make the change.
Im not going to get involved in your posts any longer i feel that your reply's have become far too immature and you seem to be bent on just attempting to prove opinions wrong than take sound advice.
I even get a feeling that your actually a VXR driver who has come here to troll
