[9W Monighan]

I have some cad drawings I drew up and just got some tubing in yesterday. If I get some time this week I'll give my design a try. Another member suggested to me that the ram should extend at least 30'' for a dump trailer to get close to 60deg. Any thoughts or suggestions?
Can someone give me some info for the attachment and closed height dimension? I could go over to my friend's shop and check one of his 1:1 dumps though.