I am new to the forum and I am buying a International IC RE in the next few days. My first question is. Why don't more people have the International IC? It seems to me everyone seems to have Thomas or Blue Bird. I don't have an problem with either brand. I just think the International is the best looking bus out there. My second question is. Do you really need a sub floor put down? I am 6 foot and have little to no head room. If I need to do it it is fine, but what would be the thinnest you would recommend? Thank you in advance.