He can get a student visa to come to the US without a long wait. But that won't speed up his green card process. Once his studies are done, he'll have to leave the US to wait out the rest of the 10 years, unless he gets another visa like H1B so he can stay and work for some more years (and even that might not be enough to enable him to stay in the US until the end of the 10 years).
EB3 ROW I-485 Approved: July 2007
USC: July 2013
I am a layman, not a lawyer. What I write here is not official or professional legal advice. In addition, my answers on this forum are specific to the scenarios discussed in each thread and should not be generalized to other situations.