With only 40 miles on it, I would certainly re-use it!
A hydraulic press and the proper fixtures would be best.
In the past, I have used a small hand-held propane torch to mildly heat the A-arm ball-joint socket. (you'll be surprise at how little heat expansion is needed to help relieve the ball joint from the A-arm socket!)
You should then be able to drive the ball joint out using brass round-stock that is slightly smaller in diameter.
This would also be a great area for the Automotive Never-Seez or Anti-Seize product to help with future removal.