is it possible to have someone remake the reflector in aluminium? then it can be chrome plated. That would be a strong solution.
Otherwise plastic chrome plating can also be done. You may need to visit local market to find out who does this. Bike wali shops might help who are involved in chrome plating the silencers and shocks.
I had the rusted exhaust manifold cover chromed for i think Rs. 600. The outcome would have been better had the cover not been rusted.