They still pop up now and then on Ebay. I have a saved search for Brison and they turn up occassionally. In fact I got a real nice one several years ago from Ebay with a Slimline pitts for a little over $200.00 and it runs strong!! I still have two mechanical 3.2s and have no plans on letting either of them go as they still run/perform great. The only problem I can see (if you want to keep the mechanical advance) is finding a replacement ignition should you need one. I've also seen a few of the single cylinder 5.8s (?) go for a song on Ebay, but I've been reluctant to bid on them as I'm a little afraid of the vibration factor with that big old single.