It looks as if The Music Room is selling the 40.3s. I’ve never dealt with TMR in any way, shape or form, but from what I have read on their site when researching speakers that I was interested in is that they do allow an audition period. What I have read about TMR here on A’gon is that they are reputable and on the up and up. That might be an option to consider.
On edit: their site does say 60 day return.