It can be done, plenty of modified cars with a live rear axle run shortened rear axles from a larger vehicle (Hilux, 9 inch, etc). Going by your display picture though, this is for a 1600 so IRS? If so, I've never heard of this being done, but you could try contacting a diff shop and seeing what they suggest.
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green200b - aka Alistair
The fleet:
Australia:
'80 200B GX - the
green200b - hibernating
'81 RX-7 - 12A extend port - daily
'74 RX-2 - 13B bridgeport - cruiser
Europe:
'93 200SX - CA18DET - tourer
Green200B has forgotten more about 200Bs than we will ever know.