I'm using a 2000 Rodeo for a parts donor for my 99 Amigo off-road project. Both are 3.2L V6s. The Rodeo and Amigo are sisters, the Amigo is just a 2-door Rodeo. The Vx is much closer to a Trooper. My Amigo has rotted cat pipes and a rotted flex joint. The Rodeo's cat pipes are identical and the flex joint is substantially the same. My experience thus far with our Vehicross, Amigo, Rodeo and my brother's Troopers are that you won't find much in common with Rodeo/Amigos.
I've got Elvira the VehiCross, For everyone else, there's a Jeep.