Fabricating a shifter handle

Hi,

I would like to fabricate a proper shifter for my hurst shifter.

For that I need some mesurments:

https://dl.dropboxusercontent.com/u/19022509/shifterMes.jpg

The one I like is this:
http://www.forabodiesonly.com/mopar/attachment.php?attachmentid=1714663067&d=1381111049
and
http://www.forabodiesonly.com/mopar/attachment.php?attachmentid=1714807867&stc=1&d=1428694026

Thank you