Hi again. Here's another thread that will give you some idea of what is involved in what should be an easy internal build if you go the empty build and parts route. Yes you will void the warranty if the saber internals are disassembled.
The Initiate v2 has a diameter that is smaller than all other US sabers except for the longer Aeon/Dominix v2 versions. Basically the empty v2 hilt comes with a screw on pommel and x2 retention screws that keep the blade secured. The switch and retention holes are pre-drilled.
Parts to order should include:
1. plastic battery pack that houses x4 AAA batteries and attached covered/shrink wrapped wiring
2. resistor - buck puck not required
3. guarded switch - has the black plastic raised rim and you may need an appropriate glue to secure it into the hole. Not sure if some kind of retaining nut can be used instead. Note that the US ordering site says that for an empty hilt the hole for the guarded switch is sized to press fit the switch without using any retaining medium.
4. basic LED
5. blade - can be ordered in 24 or 32" for this shorter saber. Length can be cut down with a pipe cutter. Blades can be purchased in bulk. A 28 - 30" blade has a better balance for this saber if not getting the 24" blade. This includes factoring in the 2.5" lost in to the emitter. Blade plugs can be made out of leftover tubing if blade will be removed from saber. Strongly advised not to look directly into turned on LED or shine at another person without blade attached.
6. hex wrench - each saber should have one so retention screws can be loosened and tightened to keep blade secure.
I think these are the most important parts and Marlena will advise you more. Purchasing a pre-assembled saber with blade and then taking them apart may be the most cost effective way to go.
Sounds like a super fun project. Ask more questions as needed and please share your project and results with the Forum.
http://www.saberforum.com/index.php?topic=39997.msg669497#msg669497