the rules
So, we could spend 10 billion on an inductive rail gun, and fire a 15g bullet into orbit, and only the cost of the electricity would have to come out of the thousand quid? am I right?
So, we spend another 10 billion on solar cells, charge up some batteries, do the launch. Cost of launch = 0?
flippancy aside, I do wonder if an induction gun might be the best approach? I like the passive radar reflector solution to proof, as well. Proof would be easier if we fired into a retrograde or anti-polar orbit, as nothing else would be going in that direction.