97 528i Question

Im looking to do the impossible and most likely the non fesible thing to do to a BMW 97 E39 528i. Im looking to convert my 528 from an Auto down to a 5spd (or 6spd if such is possible) Manual. Im basically searching around for quotes and all the parts i need to gather in order to complete the process. If someone could point me in the right direction for parts or ideas, or even better maybe a wrecked 528i 5spd manual parts car i could pick from on this task that be great! Thnx a bunch