hey, have you removed your transmission? I don't mean to scare you but the hardest thing will be to remove the transmission from the ranger only because of the darn y-pipe. So take a look at your Y pipe. I'm confident the rebuild is easy since it's a manual transmission. Important thing is to make sure the rebuild kit is for the correct transmission, in this case it's the HD transmission.
Also, any chance I could buy those sweet Alcoa wheels on your pickup?