You dont need to get a 3rd set of hands into the mix, the CHRA will bolt up to the housing. It only needs to be profiled to suit the bigger wheel.
The fact the T04S cover can be ported to suit and the fact a 71mm wheel can fit in the said housing tells me it is definitely possible. The only thing is the T04S housing is likely to yield better results, thats what sets a 28R and a Disco appart, and as all ex silvia owners know the Disco is the favoured option over the 28R.
28R despite being the same CHRA is more like a 'T28' than it is a Disco, that would be attributed to the front housing (comparing to a .64 based disco).