[LDCad] Side profile script help

[Cam's Bricks]

Hello, 

I know this is possible but I know nothing of Regular expression. 

I would like to have a script that looks at the physical size of the model, then exports 6 images (one for each ortho view: front, back, left, right, top, and bottome) that are all at 300dpi based on the physical size. This will make a 1:1, 300dpi rendering of perfect size shots. 

Can someone help? I need it for making decals for many of the trains I create. 

Thanks in advance.