RE: Carden 40% Edge 540 build ( first time)
Sounds like you are on the right track by thinking things through. It helps to understand what you are after first, before you realize that it was a mistake by rushing that particular building task. The bevels are not hard. I use the method of drawing out the bevels on the ends of the surfaces and connecting them with a reference line to each end. I use a modeling razor plane to get close to the line then final sand with a sanding block made up from a good straight biece od hardwood with belt sanding papes glued to it.. Some of my sanding block can be 18-24" in length and just under 4" wide. It does make it easy to get a good bevel on the surfaces. Work good for me. You will enjoy the build, just take your time. I did a build thread on a40% Carden 260 myself on FG website. I built it with the intent to see how lite I could make it. 35 lbs . Plane flies great.