I think JSM has some, you might try PM'ing him.
I don't think the AZBUM brackets are expensive, but I just happened upon an early 260 at the junkyard and I wanted to share the info. I am also not sure if the 240 bumper bar hooks up to the brackets, it might be different. If they are, you could check Victoria British/Black Dragon, they might have those pieces.
I'd have the bumper bar on my car but it is dented :/