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I have a T shaped lifting device. Vertical column is 108" tall 7" x 5" x 3/8" thick wall rectangular tubing. The top of the T is 8" x 4" x 5/16" flange thickness I beam 7' long, with a piece of tubing 12" long welded in the center of the I beam. The tube fits inside the ID of the vertical 7" x 5" tubing. There is a 3/4" dia. pin which holds the tube inside the tube, so the embly is made up of two pieces. The top of the T which is the 8" I beam has a 1/2" thick plate welded to the inside tube which is in turn welded to the I beam. Weld is a fillet weld all around the plate and tube. From the center to the end of the I beam would be half the overall length of the I beam. The I beam flange on the downward side has had the flange 4" width cut down to 3" on one end and 2" on the other end. This width difference runs from the end of the I beam to the welded 1/2" thick plate were the inside tube is welded on to the I beam. What is max load that can be put on either end of I beam?