Christmas Pressie to smile about!

Just sitting at home after a hard day of eating leftovers and I thought I'd check to see if a G class had miraculously become available for my LHR to HKG return trip in May. And it was! Quickly rang FC and they were brilliant! So for the princely sum of £180 I am in Upper Class for the first time. So happy.
They also only needed 15K points as there's a discount sale on at the moment.
Questions:
1. Which seat? I'm travelling solo, currently in 8A having read a few trip reports. Is this my best option, cabin is wide open at present!
2. I forgot to confirm that I can access the Clubhouse at Heathrow using points to upgrade - can I?
That's all I can think of at the moment - very excited! It's a great thing to be in UC at the end of a long trio round Europe, will definitely appreciate it y)

Questions:
1. Which seat? I'm travelling solo, currently in 8A having read a few trip reports. Is this my best option, cabin is wide open at present!
2. I forgot to confirm that I can access the Clubhouse at Heathrow using points to upgrade - can I?
That's all I can think of at the moment - very excited! It's a great thing to be in UC at the end of a long trio round Europe, will definitely appreciate it y)