I'd also call your local dealer. They can sell and have access to certified used speakers from the factory. Benefit here is it also comes with dealer setup, which is crucial if you can't do this yourself.
When you mentioned can not set up myself was it more in terms of unable to move speakers due to weight or did you mean unable to set up as in Wilson's have a special way to set up that I would be unable to do so myself?
Wilson speakers are placement sensitive to get the best out of them. Wilson folks can probably set up better than most audiophiles. You might want to spend a little time on their site. https://www.wilsonaudio.com/support/faq