Thanks for your thoughts Craig, the issue with users having an existing
PG installation is a definite concern.
It sounds like you're recommending using the "ZIP Binaries", at least
for MS Win installs, and configuring things manually rather than using
the one-click installer. If so, are there any guidelines or samples you
know of that I could make use of to help out here? As you say, there
doesn't seem to be any formal documentation on how to do this from what
I can see.
Many thanks,
Andrew