Existing Sketchup model modifications - adding windows to a van

Hello

I require some simple modifications of an existing 3D model of a van.

[1] There are 6 separate windows to add.
- 2 windows on each side (see 'Side Windows' in 'pph-sketchup-modifications.jpg' attached)
- 2 windows at the rear (see 'Rear Windows' in 'pph-sketchup-modifications.jpg' attached)
[2] The windows are to be tinted privacy glass.
[3] The windows need to be separate components, not removing any panels in the van.
[4] The windows must follow the contours of the existing panels, they aren't just flat.
[5] Add logo to front grille (see 'Mockup 1' in 'pph-sketchup-modifications.jpg' attached).
[6] Add logo watermark throughout van body (see 'Mockup 1' in 'pph-sketchup-modifications.jpg' attached).
[7] I want to be able to easily highlight a specific window of my choice (see 'Mockup 2' in 'pph-sketchup-modifications.jpg' attached), please advise on the best way to achieve this.

*The logo and the existing 3D model of the van will be provided*

Thanks