Hey Ross
if youre in perth check this guy out
pie@icenet.com.au
his name is peter well worth talking to also you can run the original eec and body module and ignition switch just hide them under the dash bit of clutter but it will work and run a seperate ign sw to pwr up the one under the dash or use an earlier eec pin location will not difffer that much you can find that out by looking in workshop manuel