[Shotimes] battery-in-trunk fundamentals

[van Oss]

I'm about to tackle moving my 92's battery to the trunk.  Please help me get 
a picture of how this is going to work.  Somewhere in the trunk (I can 
figure this out) there's a short, stout ground cable to the car body.  Here 
are my questions:

1.  The 92 still has the starter relay on the fender wall, not integrated 
into the starter assembly.  Does the relay move to the trunk?  Or does the 
red (positive) cable coming from the trunk connect to this relay?

2.  I'm trying to imagine how the present battery cables will change.  I'll 
have to change their terminals, yes, but where will they connect?

3.  What's the consensus about the engine computer's ground?  Robert Bruce 
has said that despite old info, the computer can handle grounding to the 
body without a separate wire to the battery.  Are we agreed on this?

4.  My 92 now has a headlamp harness that taps directly into the battery. 
What are the new tap points in a trunk-battery car?

TIA

VO