Not sure on the radius exactly, but it is a true circle curve done with the string method most skate ramps are done with. The height of the transition is 3 1/2 feet and it runs 7 feet long if that helps.
I'll try and get some more pics and video for you. I gave it a test session and it rides very nicely. Smooth transition and plenty of speed, but not too much. Goldilocks speed as they say.
Nope, just for lumber. Not sure your location but lumber prices here are through the roof right now, about 3 times what they were before covid. The cheap mSnow was the only reason the ramp was able to happen.
