New guy needs advise for a 4.44:1 VTD build

[AirTech90]

Hello all..

I recently, about a month ago, bought my first SVX. It is a 94 LSi, emerald green, with just over 84k miles on it, and in pretty good shape, so far, for the price I paid for it, in my opinion. Prior to this, I had not even known that the SVX existed. I have been a fan of Subarus in general for a few (several) years now, yet I have never owned one, personally. I was actually looking for a Baja turbo, but, this was a case of accidentally tripping over one and saying.."OMFG, WTF is that?".."Its basically an STI limited, 2 door, with a 6cyl. EJ3.3 that has the good crank bearing journals vs an EZ engine, and a 4eat, and its AWD? with cool windows and a Delorian body with paint"..."I need one!"...lol...it just so happened that I had the funding and the price was right and so, I now feel like Im 30 years younger, when I bought a '74 AMX 401 Javelin under similar circumstances...lol...
I am continuously doing research on the SVX through these forums mainly (this one more than the other, but I do try to include all available, relevant resources and cross check info ), since the day I bought it, as I did due diligence in researching this car before I pulled the trigger on the sale. No need to spell out what Ive found online, here, where you know better than I.
I am a mechanic by trade. I have been, for the past 34 years. BUT, I have been an aviation mechanic, specifically, since 1990. This is relevant because, as I might understand the theory behind an application, I dont have the hands on experience and access to specific tools and resources that an auto mechanic might be expected to have. for example, we dont use floor jacks on airplanes, much less impact drivers or car lifts, so, please bear with me. Any work that i choose to do myself would necessarily be done in an aircraft hanger, and some jobs I would simply prefer to "farm out" rather than tie up that hanger. Its a matter of logistics rather than competence...lol..point being, I can do a "power mod" in about 5 min.s, but changing a 250 pound transmision, solo, might go beyond my "will vs pocketbook", equation. Im not lazy, just "end result" oriented. I am a piston engine overhaul specialist, and I truly appreciate the value of experience over first time "follow the manual" jobs.
OK, being that this is my first subjective post on this forum, and having gotten that primary introductory background info out of the way, we get to the meat and potatoes.
My ultimate goal is to install a 4.44:1 trans. and diff., with a VTD center.
I understand that this is potentially somewhat of a project on a USDM SVX.
My strategy is, at this point, to do the 4.44:1 swap from a USDM '96-'98 legacy/outback to get the gearing in place first, along with a QC module and power mod.,. using the existing USDM SVX TCU and SVX torque converter.
From here on, comes the questions.
Can the JDM/Aussie VTD rear housing be transferred to a USDM trans. if the TCU is changed out/or not? or, would I need to swap the entire trans. and swap in the ring and pinion gears to the JDM/Aussie trans/TCU combo? I am aware of the trans. mount issue with the VTD tail section, and have the part numbers for those already. Are there issues with that gearing vs. the TCU's that need to be addressed?
I have noticed that there is an existing 4.44:1 VTD trans setup out there...and I believe it has a QC mod too....lol...
.