It sounds like you could use a similar dodge as with tickets sold in Brazil a few years ago. I booked those on Expedia's Brazil site for travel ex UK, and a mate booked ex BKK and we both used them no problem. I also had a couple of other Brazilian TAs in my favourites that are probably still there that priced them up no problem.

Ours had to be on QF flight numbers (as it was their anomaly that gave rise to them) so that maybe helped keep them low profile and less likely to attract attention.