So a few things here,
Welcome and congrats on the car. Maybe head over to the new members section and introduce yourself, and maybe post a picture of your fine steed, nothing fancy needed.
you have two options
1. As mentioned, you can leave your headlight switch permanently in the "fully ON" position. The car will not beep as it is not the parks/driving lights you have selected. This does mean that as soon as the car is turned on, the headlights will be on, come rain or shine, night and day, hell or high water. By far the quickest, easiest, and cheapest solution.
2. Do a full auto-headlight retrofit, this can cost quite a bit, and some of the part are impossible to find. You will need the switch, the sensor, the RLS lense, new mirror shroud, wiring harness (or make your own) and coding. The hardest part here will be to find an autolight switch that matched your car, and the RLS lense is about as rare as a sacrificial virgin these days.
Unless you plan to keep the car for quite a few years or it is essential to you to have this feature, I would go for option .
Regards