Standing at the brink

Okay, got Gmax installed, the SDK glanced through it, have "project 1" picked. It's going to be relatively simple and slightly "different" from the usual.
(Steps up to the edge of the cliff, looks down, shudders..
)
What's the best 'first step'? 3D model? I already have 3 view drawings, and have played a bit with GMAX to try to get a "feel" for it.
(Steps up to the edge of the cliff, looks down, shudders..

What's the best 'first step'? 3D model? I already have 3 view drawings, and have played a bit with GMAX to try to get a "feel" for it.