Sadly, the ideal (IMHO) solution would have been to fly Hi Fly's A380 that they kept in original Singapore configuration, alas Coronavirus apparently ended that.

It would have offered a true SQ suite at an affordable price (it was my plan to fly in one prior to pandemic) and then an opportunity to fly any Biz class to Singapore using miles.

I've flown TG's A380 in their First Class just prior to UA jacking up Int'l FC mile requirement (many, many moons ago), but strongly suspect that SQ in Biz would have been a more amazing experience on A380 (not so much on intra Asia Biz, that left me somewhat underwhelmed). At least I got to drink Dom Perignon on my TG flight