Ultimate FX Kylo Ren Conversion?

[quietstarr]

first off, hello. ^.^

I've done a fair amount of reading and research on saber conversions. Unfortunately it seems all the ones I've been able to find revolve around the Force FX line- understandably so, the metal hilts are nicer and likely sturdier. However for a first attempt I couldn't quite justify the entry fee being quite so steep.
To that end I opted to try my hand at modding/converting an Ultimate FX saber, specifically the Kylo Ren TRU exclusive. Now I've seen people post before that they have converted UFX sabers with new blades- primarily using them as Stunt Blades/Practice Blades. However, finding information on How has been a bit trying.

At present I am about 3/4ths of the way through cracking the hilt open. This in itself has been an ordeal as Hasbro has used an excessive amount of glue on the @#$% thing.

So my question really boils down to this:

Would converting it essentially follow the same rules as converting a Force FX saber or am I dealing with a whole nother animal with the UFX line?

Any help/tips would be appreciated.

1st UPDATE:
I got the thing open! For anyone interested, here's what the innards looks like.
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closeup on the board
20151106_121157.jpg
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and a shot including the speaker placement
20151106_121226.jpg
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and the power button
20151106_122438.jpg

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UPDATE!
I've thrown together a wiring diagram. Please excuse the crudity of this model, I didn't have time to draw it to scale...

wiring.jpg
^- I forgot to draw in the Regulator Ground, it's set to go to the same spot as the battery.