Specs don't list the lift capacity of the hoe, but digging force is 6000 on the bucket and 2511 on the dipper. Force is pressure on the flat side of the hydraulic pistons, so force is increased. Figuring that the lift is on the shaft size and would estimate 1/3 less, so I would guess around 800 pounds. If your Allmand is anything similar to my Terramite, it should have no issue lifting, the problem will be moving it slowly with the hoe extended
The Chrysler 440 should be in the 670 pound range