I'm not sure where the cooling coils are on a Holiday 5cuft freezer, (and i dont know how youre fitting 3 cornies in it, cause i can only fit 2 in my holiday freezer.) but if you remove both hinges, and switch them with each other, (so the one with the spring is on the back left) then you can...
pressure on the seal can also be achieved by adjusting the lever lock for a tighter fit, by bending it, or adding a shim.. like closing it with each of the fingers of the lever lock on popsicle sticks.