If you want to install a floyd rose on a guitar that is not made for one it can be an intimidating endeavor. You can do it without a template if you follow my instructions in this tutorial. I have been building and repairing guitars for decades now, and this method will not let you down if you take the time to measure and double-check everything.
If you want to learn more about guitar repair and luthiery, or you just want to build your own custom guitar, check out my site and get my guitar building course. www.GelvinGuitars.com/shop