"Horizon" has nothing to do with it!   

Most pilots by the time they get their IFR rating and CFII rating are around 75 hours of simulated instrument time.  Even at my former highly structured 145 flight school most pilots were about 65 hours to finish the rating, some who didnt study as much had more.  CFII should go fairly quickly with only a few flights so thats not unrealistic.  I just added an extra column in my logbook after that for logging how much time I spent teaching IFR as a CFII, since we couldnt fly in the clouds for real I just kept that column so If I was going to go get another instructing job at the time I had something to show that I actually was using my CFII vs only doing Private/Comm instructing.