Skippy.. would I recommend it? No.. if you don't need to spend the money, don't. I was sick and tired of having an oil leak that when pulling the motor apart seems to have been the rear engine cover bolts (only accessible when motor or trans are out).
I do like the way the 00+ pan has the windage tray built into the pan and not the gasket. The gasket is a much better design as well and appears to be one that will hopefully give many years of great service at a better cost than the S2 96-99 pan gasket.
There is no reason why the filter adapter for a 00+ bonne won't fit, I don't recall where the GP filter sits...as long as it doesn't try and face forward of the water pump you should be fine. Tthe transmission connects to all these motors in the same ways.
Seems to me that there shouldn't be an issue changing it. I'll know very soon.