I just bought this 1964 Ford and in bad condition. I was planning on rehabilitating it and was thinking of starting with the body. Any tips on cheap flap discs? Or any of you has any comment on this Smith & Arrow flap disc (http://stores.shop.ebay.com/smith-and-arrow__W0QQ_armrsZ1) I saw on ebay? the comments stated that It was a good product. Any of you guys used any of this?