This quote relates directly to your question: www.theoryland.com/intvmain.php?i=622#64
It's a little vague though. He says it's possible to gain all of the powers through various workarounds, and that Hemalurgy is one of those workarounds. However, he doesn't say that Hemalurgy work for all of them. The magic in Elantris seems especially hard to get, given how regionally locked it is. (Hoid apparently had some trouble with it, though he almost certainly wasn't trying to use Hemalurgy.)
My guess is that Hemalurgy isn't enough, on its own, to get all of the powers.
As an aside, there are upper limits on how much investure a Hemalurgic Spike can hold: http://www.theoryland.com/intvmain.php?i=1158#14