Who has had the new 10.5" blower installed in an earlier model? How much $ was it. Just got off the phone with my dealer and he quoted me $413 plus tax for the blower, $525 plus tax for the conversion kit??!! and 7 hours labor @ $85 an hour. Is this right? I have 2 I want done but that is way to high. Any details on how exactly this is done would be appreciated. I was hoping to do the conversion myself.