Do a search on gunbroker.com before you buy. There's a guy that posts a lot of stag there. I recently purchased two sets from him. Both were cheaper than Ajax and the quality was excellent.
It's my understanding that India now limits the shed antler harvest to two weeks per year. I don't see them changing that law, so unless a new source is identified, the supply will be limited for some time.
You might also want to check with Tyler (Tyler T-grip). A few months ago they had some stag odds and ends on clearance.