Yo Z:
How many miles on this machine?
Even if you have someone check the other pistons for cracks, do you really want them back in the engine and possibly blowing chunks a few miles down the road? From what I've seen of my #2 piston, I wouldn't trust the other two, especially after 180k miles.
Even if "a few miles down the road" turns out to be a few thousand, you're doing 2,000+ miles a month. If you're going to this effort and plan to keep racking up that kind of mileage, I would at the very least replace all three (but that's another C note easy). In fact I would do the JDM thing (what I plan to do). If your bore is messed up (see previous post) you definitely will want to think JDM.
Then again, if you really do like to experiment, I've found that we do our best learning when things blow up in a really bad way...