On my DC07 Animal I was able to successfully cut off a few inches and re-affix the hose collar assembly using the instructions provided above. However, it took me a while to grind off the factory glue left on the black collar before re-epoxying the hose in place.
For not being glued on, there sure was a lot of glue! :)
Time will tell if my repair holds. Unfortunately, just after epoxying the hose to the black collar, I realized that I should have cleaned the hose first. I'm sure all the dust from years of use will weaken the bond. Oh well, plan B (complete hose replacement) appears to be "only" $40 if this doesn't work.
Mike L., November 2009