Nose weight problems

We bought a Bailey Unicorn Valencia last year and before we set off for France I checked the nose weight - 120 kg.  This is within my car's towing limit but in excessive of Alco's requirements.  With two small gas bottles and hardly anything in the front lockers we only manged to get it down to 110kg and that was with some weight deliverately placed in the rear toilet compartment (not ideal I know).  We will be going to France for 5 weeks wiht larger gas cylinders and I am worried again about nose weight.  Any thoughts?