I have been reading 'The Practical Beekeeper' by Michael Bush as I venture into the world of beekeeping. I am looking to get started this coming year. Meanwhile, I would like to build an observation hive to install in my home office as he suggests. Does anyone have detailed plans with drawings for an observation hive that holds four frames with the correct bee space dimensions? Also, the window of my office opens onto my front porch. I do not really want my bees entering and exiting on my porch. Therefore, if I ran my entrance tube out the window and off the side of my porch, it is 6'6". Is that too long of an entrance?