Guild Wars 2

This isn’t about the price or the forced bundle of base game + expansion, there are a ton of threads on those already and honestly I don’t really care about that. I am curious if I already own the game would I be able to give away the core/vanilla game to a friend and use the expansion for myself?

I apologize if this has been asked and answered, there are far too many threads on the general subject already but everything I saw was more about the cost or the forced bundle.

-Regards,

I am unable to proceed in this quest. After killing the captain of the 2nd ship(charr) the planks are not extended to the 3rd ship. I have tried moving around for a locational trigger but to no avail.