Don't lost time to make yourself some ruby!
The language "Ruby" is not very easy!
Use the scripts "ready made" is more efficient!
Only geek can make that! Scripting ;)
And generaly a good scripter is not a good modeler and vis versa :)
Too more time too learn scripting or too more time to learn modeling!

The 10 scripts that I have given are sufficient for modelise quasi anything!