you would need alot of parts including the manual gearbox which is roughly $1200+, also you need manual flywheel, clutch, pedal assembly, clutch master and slave cylinder, console parts, (not sure if the factory manual tail shaft will fit?). so its not a small job and if you buy all the parts and get someone to fit it all, i would say it would cost more than $2000.
if you can find someone to buy your auto box then you can get some money back