I would like to build this model. Scale 1:4. that means that every meesurent on the drawing, if you make it on a A4 will be 4 times bigger, just as on the other models. The model is 20 cm on the drawing, that means 80 cm in reality. Its very important that the form will be as on the drawings. The model consist of three pieces, glued or screwed together. The "tunnel" in the middle o the car shall have totaly flat walls both on the sides and on the top of the channel, not excavated as on the former model. Your father may buld them totally solid if that will be simplier. The wheels shall be made like them on the other two models. I would like to pick up the model the 7th of may if its possible. I suggest 5000 Bath for the model as for the other two. If any questions dont hesitate to call Arisa and she will send the qestions over to me. Best regards Torsten Larsson.