A one man station would only need one car. Depending on area, they'd probably effectively be a sub-station of the main LAC station. They'd have the resources of the LAC & Highway (albeit from a distance) if needed.
Again depending on area, I'd suggest they'd have a Caged Truck or something like a Patrol or similar. Maybe even a Territory?
I have a friend who worked a one man station but when I went to see him, he was on holidays & didn't have his vehicle (from
memory, it was over 10 years ago).
RPH 50 has just been released according to their Twitter account. It went from 47 through to 50 in such a short time!