I've noticed there are different types of hy-vo chains, such as automotive cam chains that generally have tensioners while other types are self adjusting as they wear. I'd like to see what you come up with.
After I finished the primary drive on my LSR motor I learned a friend has been using a hy-vo chain on his engine with success while another friend had his break, also snapped the end of the crankshaft off. They won't tolerate any shaft flexing or mis-alignment.