Keep it in MH config and re-upholster the A/C, sell the J seats for an extra £50-100 a pop and you have a 280-odd seater with PTV's, more capacity but easier to fill for a lot of the year
Not gonna happen but a nice idea I think
That's barely half a dozen more seats than BA's 3 class configuration.
Too big
Too heavy
Too costly
Pure folly.
I agree with BasilFawlty; keep off the juice.