Your best bet there is to buy a scrapper with a blown engine or MOT fail, hope to sell the bits you don't want then weigh it in.
You'll always find another bit you havn't got otherwise.
The pedal box bolts in
the tunnel top is riveted in, the gearshift bolts to it on an auto
there's a chunk of wiring loom you need to change
there's a resistor in the EFi wiring you need
the engines are the same but you need the torque converter adapter and driveplate
the oil cooler(s) for the auto box
etc etc.
That said I'm going Auto myself and yes, my spares dept is on bricks behind my house :lol:
or a S/H gearbox is worth, well whatever someone will take for it........