Ask each tool supplier for the complete identified assembly and load information. Then the integrator can assess that assembly against the intended motion and applicable robot limits. Part mass alone leaves too much out.
Include what must be returned: assumptions, applicable limits and a result for the defined handling task. A name on a quote isn't much help without the work attached.
Ben, agreed, though I would also ask what they need from Priya before they can give that result; an incomplete task description can stall this even after the tool data arrives.