I only buy 2 boxes and I must admit that I had some luck because when you order from the net you don't know exactly what you will get.For the "Stamps box" I had no problem but for the "relay box" I had to rework it and until I finished all the wiring I was not sure that I would be able to close it. As I said,dosing pump box was made from electrical trunking so really easy to do (most difficult is to adjust the 2 plastic side) . The main box for Ferduino has been made by a friend following the dimensions that I gave. After I had to do all the openings in accordance with my shield. Finally the look comes from the adhesive that was put on the different boxes. I am sure that your final work will also look amazing. The main problem is to find time .