[Dave at Pelican Parts]

1) Webcam quotes the specs as:
0.426" total lift
262 degrees total advertised duration
224 degrees of duration at 0.050" lift
The info I could get did not specify lobe centers, "intake centerline" (huh?), nor advance.

2) I would be surprsied if the adjustable gears were only available in straight cut, but I don't know for a fact.

3) I don't know who you'd get the gears from.

4) A straight-cut cam gear requires a straight-cut gear to drive it on the crank.

--DD