Not going to happen because;
- No availability in J
-AMS to HKT isn't viable. You need to use a *A hub like FRA, and from FRA at this time, finding a reward seat on LH or TG is unlikely.
Tax & fees will set you back close to $1500
Aeroplan is going to push you towards Air China and with a 155,000 redemption you are best off just buying $3800 RT in J via PEK or PVG .
At the best of times you might make it via CDG on AC with a connection on the TG 380, or using Swiss with a long layover via Zurich.
Your proposal just aint gonna happen because I have been trying for 3 months to burn my miles on a YYZ/YUL/YVR to BKK route without getting stuck in Y and am SOL.