KB,
For the most part, Method 1 works just fine. Although, oddly, I remember having to always horizontally flip the texture, map it to the opposing side, and move it forward. I don't need to actually do the taking screenshots part since my texture file is basically the print mechanical for the box itself and so dimensionally it matches my model.
I was just hoping from something more magical like Method 2 where I wouldn't have to keep prepping and aligning all these textures. And since my source is an actually Photoshop file, something like Hexagon, where you do direct painting isn't an option either.