Flyboy, I needed to buy an extra pint of PolyTak, and an extra quart of PolyBrush; however this was only for fabric application and the Brushed coats of PolyBrush. The sprayed coats of PolyBrush would require more. Kitfox does sell these things. Apparently you haven't looked thru the Kitfox accessories catalog; many nice optional things in there including extra building/fabric materials. The 3" bias tape was for the perimeter finish tapes on highly curved edges of the stabilizer, elevator, rudder, and vertical fin. Much easier to use than the standard tape. Brushes and MEK from local hardware store. A caution about MEK; most stores are now selling a substitute MEK (less toxic) and it is getting harder to find the real MEK. I used the real stuff and have heard that the substitue is not nearly as good. Wear a good respirator.