I live in Fayetteville Arkansas, and although I imagine there is an Asian store around, I cannot remember seeing one (except for the one in Springdale with the bars on the windows because of the scary neighborhood, and you're asking "why were you in that scary of a neighborhood?" HA!).
I made a savory smoked salmon mousse (no egg) filling for a canape which had a shaved cucumber for the edging. I didn't want the rubbery texture of gelatine so they could bite through the whole piece, and I also thought, if the cucumber leaked at all, a starch might help absorb that. I worked great, but I also plan to try the agar too as the flavor might go well.