I’ve ordered Carclo triple optics from LEDsupply.com. Not sure they’ll have what you’re looking for, but there’s no minimum order and free shipping on orders under 13oz.
For a simpler flood option, have you considered diffusing the output rather than rebuilding with optics?
d-c-fix is an adhesive diffusing film and is available from a couple of members in small quantities. It’s easily cut into a circle with scissors and adhered to the outer surface of the lens. I’ve heard of some folks using two layers to increase the effect.
BLF member RobertB has recently shared his discovery of Luminit film with us. He’s working on making it available to us in small quantities, as it is quite expensive. It is not adhesive, so it needs to be installed behind the lens/optics.
My post in the thread I’ve linked includes some beamshots I took comparing the two products.