Just build up your post count to more than five, then you can post in the "Classifieds" forum and PM sellers.
New Reo Grandes are very often out of stock on their website. But there's nothing whatsoever the matter with a used one. I bought mine used, but it performs like brand-new. Reos are both extraordinarily durable and engineered to be as simple as possible. If repairs are needed, you can do them yourself with parts from the Reo website, or have them repair it. They stand behind everything they sell.
Used in good cosmetic condition, they cost about as much as new, but at least there's a trickle of them available on the "Classifieds" forum.