Hi there. I'm going to be getting a Holland Lop as soon as I have everything ready for him. I'm repurposing an old dresser for his house, he'll have almost 19 square feet of floor space, however my question is, how tall does it have to be, he'll have 4 different levels, but I want to make sure he has enough head room. Also, how long would a bale of Timothy hay last for one bunny? He'll have different bedding for his bed. He'll be kept inside and will have the run of several rooms during the day, I also plan on having him neutered. Thanks in advance for the help, I just want to make sure everything is just right before bringing home my new bunny.