Hai-Lee, I know that feeling!
My school’s makerspace has a laser cutter, and ever since we’ve gotten it, I’ve been looking into FT laser cut planes.
I’ve gotten my process for converting from Sp0nz’s PDF’s to a Coreldraw file down pretty well, and I currently have around 5 planes in Coreldraw format (optimized space for cutting, so it looks messier than the plans).
If you want, I think I can export those files as .dxf and send em over via pm if you want, as I’ve already asked Sp0nz regarding the topic before and he told me the same thing. It’s frustrating, I know, but as flying monkey said earlier, it is definitely hard to strike a balance between free plans and competitors, and I understand their decision nonetheless.
However, I’m here to help in any way possible, so if you need some of the plans in a .dxf format, just pm me and I’ll work on it and send you a .dxf copy.