Odachi/Katana template?

This is fairly straight forward, most templates that I find for making katanas tend to be on the shorter side, and I'm looking for something that is longer as the sword I'm trying to make(Tensa Zangetsu) is a lot closer to the Odachi style length than that of a standard Katana. Does anyone know of a good template I can use? I don't particularly trust myself to make one myself or to create a fill in spot between pieces of a regular katana template.