Fuel tank vf1000f will a vf750 fit are they the same size

Can anyone tell me if there is a difference in size from a vf1000f tank and a vf750f 1984 did they use the same tank for both

the 750 tank fits on the vf1000f as was my bike until i restoerd it
Like the Pheonix it rose from a £200 bike off ebay