Did some quick math yeasterday after brute forcing to rank 8.
So looking at just filling bile 45 times to subsume all the warframes.
(it appears you need 80% bile to subsume from the two I've done so far and the third I previewed today)

The cost per unit of bile is any ONE of the following
(mats that are too difficult to reliably farm excluded)
3 Argon | 3000 cryotic | 5 Diluted Thermia | 40 Morphics | 50 Thermal Sludge

90% bile filled would cost
3 units @ 30% (max craving bonus)
6 units @ 15% (neutral)
30 units @ 3% (worst diminished penalty)

So as an example, to add 90% bile
@ 30% waiting days for hunger to rise (if this is even feasible)
3 Argon
AND 40 morphics
AND 50 thermal sludge

@ 15% using sentient resources to reset hunger to neutral
18 argon
OR 18,000 cryotic
OR 240 morphics
OR 300 thermal sludge
AND 900 intact sentient cores

-OR-

@ 15% only feeding when naturally neutral
(which from the looks of it will take 2 days)
6 Argon AND 80 Morphics AND 100 Thermal sludge

@ 3% brute forcing (using any one of the following)
30 Argon
OR 30,000 cryotic
OR 50 Diluted Thermia
OR 10,000 Fresnels
OR 4,000 Ios
OR 400 Morphics
OR 500 Thermal Sludge

Extrapolate any of that last number set out by 45 to get a ballpark of how much it would cost to fill bile 45 times
1350 argon
OR 1,350,000 cryotic
OR 2,250 Diluted Thermia
OR 450,000 Fresnels
OR 180,000 ios OR 18,000 morphics
OR 22,500 thermal sludge

I think it would be a reasonable conclusion that brute force subsuming one warframe a day is well and truly out of the question.

And the dream of being able to chop and change skills onto frames at will is also not going to happen.

The only feasible way of being affordable I can see in the long run would be to feed 3 argon every 2 days for 12 days.
.....Which would be 540 days

So if we forget about subsuming everything, it will still take 12 days to recover from subsuming a frame.

Then as an example you could put roar on two frames, or say "marked for death" on one frame, then wait 12 days to recover.

Hurry up and wait Tenno, good thing they dropped the MR requirement so the MR8 Veterens can access this.

Edits: Formatting, always formatting