I suggest go grab it, your ornate is growing and once your ornate hit 9"its gonna be hard to put a smaller polys with it. I had a 5" ornate that ate a 3" endlicheri.Palmas Polli are also about $35-40 for ~3,maybe 4 inches in Florida as well.
Unfortunately, several hours from my part of Florida. I think that price is reasonable, depending on how long the fish is.
I think you are the odd one with a cannibal Ornate(stop starving your fish)!I suggest go grab it, your ornate is growing and once your ornate hit 9"its gonna be hard to put a smaller polys with it. I had a 5" ornate that ate a 3" endlicheri.