Hi guys

Up to here with decoding the options - any thoughts gratefully received:

I need to get from CNS (Cairns, Oz) to LHR London for the 6th August. Routing and return date is flexible; any time between 10th and 15th or later.

I'm happy to have an HKG two-day stopover on the way back; a substitute SIN stopover is OK if I go that way. Aywhere else would just be transit.

I'm looking for a flat bed on the night segments, leading me to look at Business in BA.

I have 70,000 OneWorld points with CX; enough to make an upgrade of some sort.

BA have a Premium Economy one-way, Biz the other offer SYD-LHR at US$3,400, but getting to SYD cheaply is tricky.

BA also have a cheap offer HKG-LHR Business at US$3,750; looks as though it has to be via one of a number of other cities (SIN, BKK, China et al) - doesn't seem to show up in bookings.

It would be nice to go the same class throughout, for luggage alone, and anything over eight hours in a plane is hard work, these days.

Vigin looks expensive; Quantas, Cathay ditto, a DONE4 doesn't seem to work; the Virgin/SA RTW isn't cheap.

Any thoughts, suggestions at approaches?

Thanks