No riri or cobrax to drive prices up, it doesn't look like there's any special wash process. The only thing that might drive the price up is the fact it's a limited run (but even limited villains are priced the same as regular). It should ("should") be in the same price range as villains and flashes (like low $200's) but I'm going to assume it's more like high 200/low 300's.
I would say baseline like prices if no hardware or special fabric. I'm assuming the only thing limited is the color. At least that's what's happened in the past.