Nice set of Vivs Marcel!
This a couple of vivs I made for a DT Project at school.
All I did was made a box with 5 sides not 6 (I did jopining to put them together). THen I put in a middle shelf, then I made a couple of doors, cut 2 large holes in the doors, then stuck some transparant persecs over the holes. I then Cut a hole in the side of the 2 vivs and Put an airvent over it. And lastly, I put some locks on it and put heat mats in it.
Alex