Do you know if the bees take to it well or how many years to expect from a styrofoam hive? .
I bought my first styrofoam boxes 1987. They were so good that I bought about 20 boxes netx year. Box keeps warm hive in winter and speed up spring build up.
In picture you see different age styrofoam boxes. Wooden boxes I made 1966. My stryrofoams are 10-15 years old. http://bees.freesuperhost.com/yabbfiles/Attachments/Kuva_049.jpg
You may repair boxes with polyuretane clue. It fix plastics and harden with water.
But still the most difficult is to handle a honey box on the level of head.
Styrofoam box itself weights 1 lbs but honey inside medium box will be about 40 -50 lbs.
Turning boxes is not critical point. Every time when you check the hive you must move honey boxes away.
To get hive lower may help you much.