I have one of those older Ovation bridles in the hazelnut leather too, and love it! Unfortunately, I don’t think they’re made in that color anymore. It seems that most bridle companies have quit making bridles in lighter or medium colors in favor of the very dark havana, which is a shame since I personally prefer the lighter and medium, or at least a bridle that’s been oiled dark rather than dyed that way (the color always seems richer). I also loved Ovation’s oakbark tack and have a very nice pair of stirrup leathers that don’t seem to be made anymore, either.
All I can think of is to try looking for Pessoa or HK Americana in the same color, thought that seems to be hard to find as well. My HK Americana bridle is nearly identical in quality to my hazelnut Ovation, and IIRC Pessoa is a very similar quality. I’m not sure if you’d be able to find just the noseband, though I swear I’ve seen Americana bridle parts around.
Edit: Sorry, didn’t realize this was an old thread!