Concept: 28/56 watt multi diode combined laser "Wizards Staff"

I've been thinking of doing a combined laser build ever since I seen jander6442's Belphegor build.

I figured at first that combining 2 NUBM44s with a cube would be fun.

Then I started thinking about how much power it would need... Specifically batteries. I'd need at least 4 32650s to pull it off, that means a 4D maglite.

Then I watched "Monty Python and the Holy Grail" while surfing LPF and there is "Tim?" blasting stuff and I thought... Hmmm, a laser staff... Now that would hold all the lithium batteries I could want.

So why not 4/8 diodes, 2/4 PBS cubes and a knife edge assembly to combine them together?

So far I can't think of any reason it wouldn't work.

So, a 28 or even 56 watt "handheld" laser.

Thoughts, feelings, ideas?