Bill, FYI: I bought a set of Magnum wings from a guy in NH. I just put the word out on the internet sailing sites that I was looking for a set of wings.
I had a choice of Magnum wings that needed new end caps, or SX wings from IA, some rivits needed replacement. The asking price for Magnum wings was $300 and the SX was $750. Shipping from NH to MI was about $200 but an owner of a trucking company from my church shipped them for free.
I didn't get to put the wings on the boat last summer as I intended to put anchor plates on the rear crossbar and struts (struts are not necessary for magnum wings but I like to ensure a bullet proof boat) as I sail on Lake MI in some large waves.
A friend of mine said that once I sailed on a boat with wings I would never take them off (unless racing).