I won't publish scans of the plans 'cause they are copyrighted but you can get them in the book
The Racer's Guide to Fabricating Shop Equipment
by John Block
Steve Smith Autosports Publications
P.O. Box 11631
Santa Ana, CA 92711
714-639-7681
or get it on-line @
http://www.ssapubl.com/index.cfm?do=search