Larry - Ebersole’s Lapidary Supply Inc, 11417 West Highway 54,
Wichita, KA 67209-1298 carries a sand caster in their catalog for $52
(US). The casting flask itself (cope & draw only, no sand, parting
powder, crucible, etc) is $23.
Their phone number is 887-323-7765, Fax, 316-722-4775. The order
number for the full kit is #15-0140, for the casting flask only -