The NAD M10 seems to fit alot of what I am after but it only has one hdmi input.Your list does not include a subwoofer. The OP's main concern is the preservation of the LFE channel to the subwoofer. Without a subwoofer you cannot have the LFE, it is encoded at -10dB, so may not be sent to the stereo speakers. Were that to be permitted (it is of course forbidden by the specification), it would result in blown speakers and amplifier clipping, which would be expensive.
There are lots of stereo systems that can handle what you want - it's the OP's mandatory LFE preservation requirement that throws a spanner in the works. Just look for a box that has all the sources you want, the performance you want, and meets your unspecified budget. You can even buy a TV that does everything you want, and if it's a high end TV, will do so with decent performance too.
So could I attach my sheild to the panasonic OLED and use eARC to deal with the sound?
I have a budget of up to £3k or so.