I think the income spread looks reasonable - probably not far form what my spread of ticket prices would be I guess.
£60k an sector sounds a lot though - I would guess it will be closer £5k given you can rent one for £8.5k an hour and presumably there's a lot of cost in there due to relative low utilisation and scale:
http://www.privatefly.com/private-je...hire/A320.html
Even if it's £10k per sector including all BA's overheads that would be a healthy margin of 27%.
I'm just guessing though - sure others will have better insight....