Welcome to the forum. Sounds like you are aware of what's to come, but why not give it a go now?
As saint said, there are many here who have chosen to shave smooth. You can work up to it by getting a buzz cut, and then gradually cutting it shorter each time. This gives you time to see if you like the way it looks.
Once you're down to the lowest grades on the clipper, a headshave is very tempting because it's so close.
If you decide you don't want it smooth, you're only a few days out from being back to buzzed. Good luck.