Neptunus Rex Just do it!
I would expand on this point.
The CAA, despite appearances, take a positive attitude to flying machines such as the JP.
It is not beyond comprehension that in the (near) future, an event occurs that removes the practiciality of doing so... could be a bad
PR accident, the Green brigade, taxes, noise, an EU "regulator", maintenance issue.
Whilst the ££ involved are not cheap, in 5? 10? years time the cost / ability / privilege of flying them might seem good value for a somewhat unique experience no longer available.
NoD
PS NB Thunder City seems, unfortunately, an "option" to fly a FJ no longer available - say a Lighting trip at £5K? Concorde ditto at, say, £3K. I am sure in the coming years, many would have leapt at such an opportunity/cost?