Wonder where they get the original 1950's Bentley chassis from???
Would have though sacrificing an original Bentley would not make financial sense these days.
Intuitively, I thought you might be wrong. But, I took a look on carandclassic.co.uk expecting to find several sad examples for less than £5k but most are £25k plus - and not all of those will be free of major expense in the future.
If you found a car with a sad body, it would be a good option to consider - depending on cost.