Overdrive Options

I understand that in a peformance application you got to pay to play, but with a average daily driver type car in the 300 horse, 350 tq. range, can something along these lines work? Using the earlier mentioned 200 4R.....

Core.....$200 ish.
OH kit...$300 http://ckperformance.com/200R4_rebuild.html
Shift kit $135 http://www.summitracing.com/parts/TRG-200-4R-HD2/
Trans guy, on the side..$200
Wilcap Adapt...$575
Rebuilt lockup conv..stock type...$150-250.
Driveshaft mods & incedentals.....$400 ish.

I understand that it requires alot of labor & some fab on the owner part, but do you guys really think a senario like this isn't doable?

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Edit: I removed my commentary as it was personal opinion and didn't help out the OP.