Hey @
WulfSpyder ! You have some homework to do!
1. Decide on which soundcard you want to use. PlecterLabs.com has several from basic (Pico Crumble) to SUPREME (Crystal Focus v8.0). Naigon has several as well like the Igniter 2, and the Spark 2. You need to pick your soundcard first because they're all different dimension-wise.
2. You have to decide on your batteries. 7.4V via 2 batteries (14500+14500, 16340+16340, or 18500+18500), or 3.7V via 1 battery (14500, 16340, or 18500). You also have to decide if you want them stored side by side within the hilt, or end to end. This arrangement, along with the soundcard dimensions, will determine how large a cavity you will need within your hilt.
3. You have to decide what color blade you want. RGB (Red, Green, Blue) as a Tri-CREE (3 SMD XP-E2 LEDs on a SinkPadII star) will give you a limitless color spectrum that can produce whatever color blade you want. Or chose a dedicated color which will ultimately be brighter in that one color than the same color being created by a RGB. Let's say you want a blue blade, you'd chose a BBW (Blue, Blue, White) White would be your FOC (Flash On Clash) color, or you could go BBB (Blue,Blue,Blue = no FOC), BrBW (Blue, royal Blue,White), GrBW (Green, royal Blue, White), etc., etc.. Those two blue LEDs will produce a much brighter blade than the single blue from a RGB. Now, if you went with a cyan colored blade, RGrB (using Green and royal Blue to create the cyan) you'd be in at the same brightness as you would have had had you made cyan with a GrBW. Your FOC color could vary with the RGrB or you could have White FOC with the GrBW. You didn't think it'd be all this complicated did you? Wait till you get to resistors, weeks doing the math and picking those lil monsters out! Just finished doing so myself lastnight/this morning at 1:15AM having spent 2 solid days crunching numbers, comparing stats, comparing prices between DigiKey and Mouser, it's quite exhausting!!!
4. Choose a speaker. 2W 8Ohm. There are bass speakers and premium speakers, bass are thicker ~3/4", premium are 1/4". Both are typically 27-28mm wide. More numbers to factor into how large your cavity will need to be.
5. You're going to have to figure out how to keep all of these items, and more, in place. Custom 3D printed chassis (know how to use 3D programs yet? or someone that does?), MHS Chassis from The Custom Saber Shop, expanding foam, duct tape, silly putty, O.K. I kid, I kid. Seriously though, you have to figure out how to keep all these expensive little parts from smashing around inside your hilt!!!
6. Stop reading this and watch every tutorial video Rob Petkau aka Madcow at Genesis Custom Sabers has put up on Youtube. Watch all of his tutorial videos on The Custom Saber Shop's Youtube page. Watch every tutorial video Irvin Plecter aka erv has up on his Youtube channel...
https://www.youtube.com/channel/UCGToxjzpaR-gX4q_MXo8Igw
https://www.youtube.com/user/TheCustomSaberShop
https://www.youtube.com/user/irvinplecter
This will get you started.
Now, as for your designs, the broken staff hilt looks like you would get a fair amount of space within it if you made it 11" or longer. The Japanese dagger handle hilt looks too short. It would become gigantically fat if you scaled it up to 11" long or so. If you want a Yoda length saber, fantastic! it will just limit your battery and sound card options to the smallest of them both. That will limit both your feature set, and your run time. I really like this design, but I think you'd be better off redrawing it where it ended up being about 11" long and 1-1/4" up to 1-1/2" thick. An inner dimension of 1-1/4" gives you plenty of room to do 14500's side by side, and lots of space for a CFv8, and a HM-13 Bluetooth module from Fasttech, and a Color Extender, and a Crystal Chamber, and, and, and...... whatever else you can fit in there depending on the overall length of the cavity you have.
If you need more inspiration check out the galleries at the
http://www.fx-sabers.com/forum and at
http://forums.thecustomsabershop.com/forum.php
Good Luck on your Lightsaber Building Journey!