i will bet you my car that thats not going to be the only thing. you will also need a 3rd gear synchro. i just rebuilt my tranny that was grinding 3rd gear for $3,000 after all the parts and labor. (upgraded internals, stg 2 clutch, pro 5.0, name brand TOB). By the time u factor in parts and labor you'll be close to the $800 if not more for a tranny with only a 1,2,3 synchro rebuild. shits about to start falling apart. do it all or don't do it at all.
okay nvm then dude. i promise you it is not going to be your 2nd gear synchro only. unless your a transmission builder i wouldnt recommend doing it yourself. the link above is your best bet. its basically a brand new transmission for $800 with a warranty. They ship you a transmission, you install it and ship your busted ass transmission back to them so they can rebuild it and sell it to someone else.