Creating the Reference planes

Using 3dsmax a flat plane was created, with just one segment, elevated in the front plane/axis. Using material editor the bitmap created in photoshop was then applied to the plane. Selecting 'show in viewport' as an option in the parent section of material editor allowed the image to be seen in 3dsmax.

A UVmap was then applied to help position the image correctly on the plane and prevent any distortion. Finally this plane was copied and rotated 90 degrees to show the left side view, the bitmap and plane were finally moved to aligh correctly with each other and frozen (with show in gray turned off) to prevent accidental selection of the planes during modelling