This was a so clever idea

I am organizing and cleaning out notebooks and found this fruit press that is a little different than the round fruit presses I have seen. I would like to make this someday when I catch up on all my other projects (that day will come right? lol). This fruit press was huge to accommodate one ton of grapes. I would like to make this on a smaller scale. I am thinking about extending the support beam under section (D) and attaching the posts (N)--the poles in the ground at the end of the lever-- to that extension. I'll need to take into consideration the length of the extension, the height of the poles, and length of the lever to get enough force for appropriate pressure. What do you think?

Here is the description taken from the USDA Bulletin 758.
A very efficient lever press which any farmer who is handy with tools can make for himself from material which can be found on almost any farm at any time. The press consists of the following parts: Two upright posts (F) are set deeply and firmly in the ground, about twelve inches apart. It is well to attach cross-pieces (ordinarily known as "anchors" or "dead men") to the ends in the ground to prevent the posts from pulling out too easily. The lever (E) may be hung either between these posts by means of a bolt (T) or to the side of a building, or a hole large enough to admit the lever may be notched in a tree and a lever fastened by a bolt. At the other end are two posts, between which the lever can be raised by means of block and tackle. The press itself consists of two timbers (D) on which rests the press bottom (B). On this bottom is set a press basket (A), consisting of two sides and two ends held together by means of rods (L), and so constructed that it can be easily taken apart and put together again. The sides and ends are bored full of small holes, from three-eighths to one-half inch in diameter, through which the juice is pressed. When the press is filled with fruit, the top, which fits inside the basket, and the cross blocks (/) are put on and the lever caused to press down on them. A large tub (C) is placed under the press to catch the juice. The rope running through pulley block (G) fastened to cross-piece (K) is used to lift up the lever of the press ; while pressure or weights on the end of the lever (E) work the press. It is perhaps well to state that the longer and heavier the lever, the greater the pressure exerted on the fruit. When it is not convenient to make the lever very long, weights are placed or hung on the outer extremity in order to increase the pressure. With a little ingenuity any farmer can adapt this press to suit his individual requirements.