Matched pair of proform carbs

I have a pair of Proform carbs that came with a t ram I bought with a friend. He wanted the SB Chevy t ram and I got the carbs. I believe they are 750-850s. Never bolted on. Not sure who built them or what's in them.
Just Noticed that each carb is missing a bowl screw.
$699 obo. plus shipping from NY 12569