The main obstacle, is the rear suspension and mounitng the subframe.The B13 chassis does not have the mounting points to use the RNN-14 subframe.It is necessary to fabricate a method of attaching it and a new trunk floor.Not to name drop on a forum I don't usually post on, but there is a writeup or 2 on Nissanforums.com.
__________________
Both domestics and imports have their good points.I favor neither and own both!I have:1973 AMC Javelin AMX,1979 AMC Spirit,1985 Cutlass Supreme,1995 Nissan Sentra and a 1998 Nissan Frontier.