We got a small charcoal bbq at metro last year - they might still sell them - don't remember the price but I know it was inexpensive

Thanks to Sandy,

We went to Metro, located a Habatchi and found it a little fragile, but that got us looking and asking. We found a 12 inch round BBQ with a choice of two leg configurations; one to set it on a table, the other to set it on the ground. Bought it at Thanh Hang at 84 Hang Khoai. From the business card there appears to be another business location at 27 Quan Thanh.

Bought a sweet BBQ from ExpatsPayTooMuch.com.

Though they're based in HK, they shipped it to me within 10 days. The shipping costs were about $250USD, but given the size of the BBQ, it was still a deal.