Get him into a decent length long bow. I'm 6'7", have a 38" sleave, and draw 32" (or more, but that is when I run out of arrow). After blowing up a "shorter" recurve, I did a little bit of research with a number of boyers. Ended up with a 68" long bow (see signature below). A long(er) long bow will also help in that it is more forgiving as he developes form.
What VT13 said is true. Two of the three bows I own are custom built for me.
Don't let guys miss-lead you. There is a heck of a lot of difference from 30" to 32" in stress developed in the bow, as well as it will likely stack. Most of the boyers I talked with essentially told me to look elsewere.
Lastly, he may want to shoot 3-under, so as to minimize potential for finger pinch. That choice too, will make it even more difficult to find a bow tillered that way, though that can be compensated for (raise nock, elevated rest, etc).
Wish you/him luck. Don't let him get discouraged.
BobW