Hi jcl. I believe your policy above is quite reasonable; and the 2nd point on the generous side.

However, please be aware that the manual's FAQ page includes this:

Q. My script does not still work. Here is it - please fix it!
A. Zorro Support will gladly answer questions, help with technical issues, and suggest solutions. But we can not write scripts or fix bugs - in fact we're not permitted to write even a single line of code in your script. If you need help writing or fixing your script, please contact oP group and ask them for a quote. They'll code for you - it's their job.

(emphasis added)

This should probably be adjusted to be consistent, and the above policy put on that same FAQ page, possibly with additional text about going to the Forum first, especially if one is a newbie.

Regards.