Careful putting the link here chaps; I know a certain Govt who have a penchant for buying out-of-date kit, from the cheapest bidder...
Although it's only £3.5m it should be easy to spoof them into paying £99m, provided you say e-bay have run into 'unexpected delivery costs'...
Oh and if you add 'fitted with British ashtrays' to the descriptive text, they'll have another 50 and pay and extra half-billion...
and