Occasionally, I got 2013 lefty 29er 90mm. I should use this.

I want to build this fork on my 2010 scalpel 100 team frame.

No problem at all to use 29er fork on my scalpel 100?

Any difference between 29er 90mm 2013 lefty and 26er 100mm lefty?
By the manual of the scalpel, the maximum axle to crown is 500mm.

What is the actual axle to crown length of the 2013 29er 90mm lefty?

Thanks a lot for your advise!!