s14 driveshaft length?

[chrisbmx68]

So I swapped an s13 sr20det into my e30 and modded the rear diff to fit the nissan u joint setup. I am trying to figure out if there is an off the shelf driveshaft I can make fit rather than going 100% custom.
I have an s13 shaft that measures around 47 and 1/4 end to end. I need one where the slip yoke starts around 49ish inches. So obviously both s13 abs and non abs are too short. Unfortunately I cant find any definite answers on how long s14 shafts are. Any help is greatly appreciated.
https://farm8.staticflickr.com/7608/16750197037_75fdec277f_b.jpg

The only info I have been able to find on s14 shafts is this picture and its a bit too long so im hoping there is maybe a slightly shorter one?
http://i10.photobucket.com/albums/a113/chugger2k/m30/s14shaft.jpg

[chrisbmx68]

Ive also seen this info but the numbers don't add up to me based on the actual s13 drive shaft I have on hand. The only thing that makes me optimistic is that the s14 one is clearly longer based on these numbers.
S13:
Section 1: Coming From Trans (ABS makes no Diff. in Length here)
M/T = 395.0mm (15.55")

Section 2: Center Bearing/Mount to Diff
Non-ABS = 605.0mm (23.82")
ABS = 590.0mm (23.23")


S14:
Section 1: Coming From Trans (ABS makes no Diff. in Length here)
M/T = 421.0mm (16.57")

Section 2: Center Bearing/Mount to Diff
Non-ABS = 650.0mm (25.59")
ABS = 636.0mm (25.04")