Before I spend $$$ for LHS headlamps/fog lamps, has anyone made this swap? Could you tell me what I'm in for?

Thank you.

The wiring harness has to have the connectors to support them, plus the Dimmer Switch has to have the wiring provision to turn them off when the high beams are switched on, plus the headlamp switch harness also has to have the wiring provision for them as well as the switch has to be changed.

If you do not have all of the above then your only other option is an auxiliary switch and relay setup to wire them in. Generally if the option is not installed on the car then the vehicle is not wired as such.