yeah nah.
things which you can work with are things like coilovers, exhaust, wheels, these things you can swap parts in and out of to get it through regency,
the hard parts are turbos and other engine mods, extensive suspension modifications and brakes, damage/rust, ecu in some cases.
this one looks ok on face value and is in sa (i dont know the owner and have no interest in selling the car btw)
http://www.carsales.com.au/private/details/Nissan-Skyline-1990/SSE-AD-3257328/?Cr=0
we know this is clean as its for sale on here somewhere and has just been complied
http://www.carsales.com.au/private/details/Nissan-Skyline-1994/SSE-AD-3275898/?Cr=2
possible candidate
http://www.carsales.com.au/private/details/Nissan-Skyline-1991/SSE-AD-3101881/?Cr=28