Finally, I put together a step-by-step on how I made the sword for my Yamamoto cosplay. ^^ Sorry it's not very detailed. This is how I did mine and I like to find the easy way to approach making things(as long as it looks good in photo, right? 8D )
For more intense sword work, I recommend you to look at *chioky
's tutorials on sword making: [link]
For how to handle wrapping, I followed this tutorial: [link]
Although I used a different wrapping material.
Finished product and more info on this sword here: [link]
Hope this helps people who want to try making similar props!
Good luck guys~