Auto to Manual Transmission

I have recently come across a 240 that is in amazing condition and is in perfect running condition, BUT, it is an auto. I’m wondering what is involved in changing it to manual. Is it worth my time to learn and do it myself or would i be better off just taking it to a shop? And can you recommend a shop that can do this. Thanks in advance

http://www.son240sx.ca/forum/viewtopic.php?t=28215&highlight=auto+manual

search is ur friend. 3rd post from the top. Change the size of ur avatar before the mods do

that link no longer works this does
http://forums.nicoclub.com/zerothread?id=77784
mabie this should be a stickey ???