I’m not sure what your above reference pic is of, but I don’t think it an M1074A1 PLS. Your hook/lift mechanism is too far forward. There is no room for either a work platform and or CHU mount, or the crane present on them. In the below drawing from Oshkosh, the mount is behind the first rear wheel spring mount, almost centered bewteen the two rear wheels.
You can see the mount further back here as well.
