Well yall I made this guy wayyyy back in 2006 and it's been sitting out in the weather since then... I basically re-made this press since I took it fully apart, replaced most of the components, and re-designed certain portions of the press.
There is a full set of plans both PDF and 3D CAD in the description of this YouTube video for free. There is also an excel calculator for estimating the cylinder tonnage.
Red Beard Ops