Hmmm... that sounds like a good idea.
The Hovland MusicCaps are very popular amongst the reputable modshops and tweakers like MusicalConcepts, ModWright, DIYCable, Percy Audio and ALK Engineering just to name a few.
Below is a picture of my KG5.5 and below that, ALK crossover.
ALK Crossover http://www.alkeng.com/