I'm definitely not the expert on the 3.3 engine, but I do know that not all engines require a particular positioning on the flywheel. What's important is that the flywheel is adjusted properly in that the ring gear is within the proper tolerances of the plate, and that everything balances out without any warping and without anything being at all crooked.
A lot of Flywheels have offset bolt patterns, which means it will only bolt to the engine in one way. If all of the bolt holes are evenly spaced though then it might not matter.
As long as everything measures up right, I've seen people completely grind off their dowel pins in order to fit aftermarket flywheels onto their engines also.
There are a couple of options for you and hopefully someone who has experience with this particular engine will also chime in.