Ah! Well just raising an Investment Proposal and getting this as far as an AOD (Analysis, Options & Design) would cost an absolute minimum of £35k. Into F&O (Feasibility & Options) and dependent on the available options with engineering solutions would be circa £150k at external business rates (because this is not NATS core or internal business). Dependent on the chosen option, implementation (including testing) would be a minimum of another £50k and deployment around £25k. Maintenance and running costs are unknown.
The above costs are based on standard sorts of projects, although not on FRS15 rates but make or buy and are probably on the slightly low side. Not a cheap thing to provide and I think I could be certain that this would be shot down in flames at the very first pass through the IPT.
'Show me the money!'
BD