I was being retarded.
Code:
#!/bin/bash
# /etc/auto.net4
# This file must be executable to work! chmod 755!
# This is very simple
opts="-fstype=nfs4,nodev,nosuid,nonstrict,nodev,sync,_netdev,proto=tcp,retry=10,
rsize=32768,wsize=32768,hard,intr"
# Just echo options, a hostname and the export root.
echo "${opts} ${1}:/"
Now, this is either deceptively simple because it /is/ or because I've missed something that's going to lead to breakage?