Faster than a bullet Inspector
Thought I'd 'water down' my original post but no worries, it is what I'm thinking.
My breakdown of costs (I'm just guessing here...)
£ 2 - 3000 for the HD transfer from the negative
....already puts it up to around £5500 - but, in this case, it seems a large chunk is going into the documentary as well.
All added up this one actually makes a lot of sense - the target seems justified to me.