Just pick up the bench and jump on the digital bathroom scale........do the same with the buckets/tracks. Deduct your weight if it takes an extra weigh with the buckets.
The racey look alone is worth the effort of the swap
That bench was a whole lot heavier than I thought it was, picking it up by myself! Just an awkward piece. I got 89 lbs for the bench and 74 lbs for the bucket seats with everything on them. So about 15 lbs shaved off so it did help take a little weight out. But the looks, leg room, and support far outweigh the weight benefits.