Hello!
Your article caught my attention, simply because I have been experimenting with scripted (copy-based) youtube videos for my own company, based in California.
I wont jerk your chain - I´m not the least expensive writer on the block! However, when it comes to writing copy I have a solid career under my belt and I´ve done STD writing in the fairly-distant past. Currently, I specialize in writing copy for products that are otherwise hard to sell and I think your project would be a real pleasure to tackle.
I would be happy to conduct a free trial run - a 30 second commercial can contain up to 75 words, so you will need a maximum of 100-300 words. I would work with a slower dialogue speed in the video considering your subject matter and the tone you choose to set (studied, knowledgable advice or funny and rapid dialogue?)
Lots of thoughts flowing here, so drop me a line and I will conduct a short test for you!
Best Regards,
JoyFind @ GAF