X arcade tankstick modification...help please!

[jshel65]

So I took it upon myself to attempt upgrading my tankstick with Sanwa JLF joysticks and Sanwa buttons. So far, a pain in the ass for sure  .

Can someone first off help me understand how to install the JLF?
Here I have the stock stick removed and the JLF resting in its place. I have noticed on others info pages such as this one (http://dsync.blogspot.com/2015/08/my-complete-illustrated-experience-to.html) that they use a mounting plate. Can I not just route out some of that wood so that it is flush and directly mount it there by making four new holes??
https://goo.gl/photos/n5SLpzkd1MVukt1DA

Also, the wiring is completely different. Are there any resources out there to help me understand how to re wire to this harness that plugs into the JLF? https://goo.gl/photos/iU3WHRmsBNbXbvaG8

Thanks in advance, a bit in over my head at the moment, but excited to learn something.....