You would not want to pay these dollars for ROTJ only to repaint WAV. There are many vendors who will do you an ESB.
you might want to look at the pre pro photos closer.... The JP's with the working hooks don't have the same missile top as the ones that are stationary..... mind you in the AOSW/C4 pics the pack this paint up is based on does not have the missile with the functioning hooks theyre cast into the missile itself from what I can tell...The ring that the fins sit into looks very off to me. It's usually recessed, even on the original ESB pack which had the original hero grappling hook.