As the Wizard I will deliver your message. 40 words a gig (41-80 words 2 gigs and so on) No adult/xxx. I can do anything special for you, just ask me first in conversation/message to see what we can create.
If you want me to create the script it's an extra 2 gigs, to just modify your script is 1 gig, add text is an 1 gig or shoot in HD is an 1 gig.
Check out the variety of gig extras for all your options.