Would it be possible please to add a link to this bit of kit - planning on doing something similar.
DT
You can pick them up on Amazon.
I use it to get a close shave, but it works great on other areas of the body too, and it doesn't nip anything.
It's best to trim as much as possible and then run the shaver over the delicate areas without having to worry about damaging anything.
Search for Head Shavers for Men, 2 Shaving Heads, Anti-Pinch Wet and Dry Electric Razor with Wireless Charging Base, Trimpod 3.0 the Ultimate Shaver for Men, Women, and Bald Heads, Face, Leg, Body