** Update **
I am green at this and 2 days at using this software package so I'm not sure why this is happening, but!
Illustrator file exported to .dxf, convert with progeCad to R12 .dxf (my Illustrator doesn't have the option to go back that far). Scale is 1 to 1 and the part is only 11 inches tall.
Create new file in DCAD, paper size is A4 blank. Import dxf file, appears to show nothing. However! zooming out to the extent the paper is now a dot, I find my drawing. Set under properties to resize paper to drawing and click regen, and now I have the drawing with in the 'paper'. So I may have this sort of resolved.
Am I missing a step or option so this doesn't happen?