I personally would suggest you are too far out to try to nab a CS. (There’s a thread for this by the way )

On that route why not go for a 747 UD, hopefully refurbished. As someone kindly pointed out recently that the 747 UD only has less than 4 years left! The CS is going to be here for...god knows how long.

No aircraft is ever guaranteed so pick based on timings and cost within your budget. If this is your only chance to fly Club (business) and you’re desperate to get the Suites, this is going to be tricky to guess, even with all the great knowledge on here.