Hard to get! But i found something interessting. look at there >> http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=330954759363&ssPageName=ADME:L:LCA:DE:1123
That kit is same for 66-68. Wonder if someone is reproducing them or if its one that Larry Daisey in CA sold from the states back when he was doing them. Thats my guess. If so his were perfectly done. I dunno, maybe he still does them but I haven't seen any advertised for a long time.
Made my own from a roll of wood veneer bought at Lowes for 20.00. Best part is that I got to stain it the shade of my choice.