siteXX.tgz and install.site

[Oko]

Even though, I have OpenBSD installed on at least half dozen machines at any given time so far I have infrequently used siteXX.tgz and install.site due to the heterogeneous nature of my hardware and use of machines. However, I got permission to install OpenBSD on 30 desktops at the place of my employment. The hardware is almost identical (i-386) but not really suitable for dump and restore installation. I am looking to do minimal intervention installation on these machines.

Can people kindly share the typical content of their siteXX.tgz files and even more importantly their install.site scripts. I would like "automatically" to replace all files in /etc/ /var with the edited once as well to run the script which will automatically add packages from the local repository as well as dot files.

Thank You,
OKO