I would start as follows.
Create a vertical line (pole) at the x,y location where you would like to place a camera then use the camera command to create and place the camera.
Using object snap nearest, click on the vertical line at a point where you would like to position the camera.
For the target position click at a point in your model that will be the approximate center for the perspective view.
Select the camera and you will see something like this.
Change to wireframe visualstyle and move the target point around so the the Camera Preview shows an acceptable croppig of the scene. YOU can also adjust the view by changing the camera values (e.g., camera and target location, lens focal length) in the properties panel.
Issue the render command and evaluate the results and when you like what you see click the Save icon in the render window.
Assigning and mapping materials, and then creating appropriate lighting can be a time consumg and complicated task. I'd start by assigning basic solid colors to each object in your scene and use the sun option for lighting.
If you have specific questions post them here.