Need a good used, (no cracks) top bridge (triple tree) for my '70 CB 750 K0. The one I have has been welded at some time in the past. I believe only the '69 and '70 used this style? I want to avoid sheling out $200-300 for a new one, if possible. Also, the photos below (from Yamiya's website) show two different trees: one with a hole, the other without ( Yamiya doesn't say what year these apply to). What is the difference? Thanks in advance!