ExTaZ the measures are as you have written :length 94,8cm , width 6,3 cm height 5,9 cm. These measures are box parameters, then you have to scale blueprints to the box. I know it's an uncommon way, but this keeps your model more accurate, it's easier to make it and you don't have to have very nice blueprints. If this haven't made things clear please write again :].
and of course : Greetings from Prague
(I have a computer here but without 3ds max :/)