Replacing old shovel handle...

I was doing some fence repair work and broke the handle on a borrowed shovel. Since I believe that you should always return a borrowed tool in the same or better shape than you started out with, and this shovel has sentimental value for the owner, I am replacing the shovel handle instead of just buying them a new shovel.

Much to my surprise, the original handle actually has a significant bend at the end of the part that goes into the shovel. ( I had a heck of a time getting the old part out). The replacement handle I came up with is long enough, but straight. I want to attempt to put the new handle in after heating it up (bending it). My question: can I just heat the end of it in bucket of boiling water (easy) or do I need to set up a steam box (pain :) )?

-- Steve (Plano, TX)