Anyone know if the B302 z-bars are being reproduced anywhere. A few of the vendors who show them say "out of stock" and few email responses from them say discontinued, no supplier. There is one repop on e-bay, seller is "slipperyjohn" who says the one he has was made by a local tool shop. Trying to find out if he had a batch made or this is a one off. Has anyone dealt with this seller before? FYI I'm looking to use it in a 67 GT350. Thanks. Brian