Original JP3 cast

Currently watching The Making Of Jurassic Park III and a thought just occured to me:

As we all know, a shooting script was dropped by Johnston at the last minute, after sizeable expense was put towards sets and props and such and such.

I've read the script that recently got released online (assuming it's legit), and one thing that's noticeable are the different characters that got the chop in the final version.

Now, obviously Neill was always going to be Grant. And I'd assume Macy and Morgan were locked in for Paul and Miles Roby, Leoni would be Susan, Nivola as Billy and most probably Diehl as Cooper.

But what about the other actors signed on for the project? Would Jeter still have been Udesky/Ordesky, considering the role was smaller in the Buchanan script? There's no Nash, was Young originally cast as Finch? Did they have to fire someone when the role of Simone Garcia got cut?

Chances are we'll never know. But I've always been fascinated by how films cast their roles, so would be stoked if some info on this ever got released