Donovan,
Sorry, I don't have a pic of the X-member, mount or if can do w/transfer case. But We've done this install on a '97 and a couple other NV4500's. We kept the top of the cross member right up there, rubbing on the bottom of the cab and lightly tapped it forward, up, forward, up etc. Small bites on each side and it was in place. Then to seat it we would lower the trans jack, puts a bit of load on it and use line up drifts as req'd to locate it. We didn't spread the frame.
Gary