I'll grip your concept or motive with my imagination and break it down to a perfect screen presentable format.
I will deliver your order EXTRA FAST for FREE (if I have the time, I don't like to charge extra for it.)
Ad, Video post(video blog post), story for film, Idea development, suggestion, animation concept, music video etc. [Treatment, Screenwriting/Script Development etc.]
Pricing would depends on the length and type of the script/idea, efforts involved and reason.
I would also give you assistance when you'd come up with issues while producing/directing scripts for which I've written on your behalf.
I would start developing scripts after thorough discussions and as it nears completion (one day to a few weeks depending upon the script type) I would send a custom offer based on previously quoted price.
If the script is for big projects such a feature film, I would be delivering it in parts after a detailed forecast with the buyer for each gig.