Hi Doug,
In the past, I have used a wifi router with DDWRT firmware. DDWRT lets you use the router “in reverse” where the router joins an existing wifi network and bridges it to the ethernet ports. They also sell devices such as wifi extenders or wifi-ethernet bridges for this purpose.
However, I have not tried it with wfview, so I can’t recommend any specifics. What I can say is that the quality of the link matters a lot, especially when there is wifi. Any dips in performance will be noticeable in the audio.
–E
de W6EL