steering column rebuild in progress

i am rebuilding a steering column. its floor shift and shoule be for my 75 scamp. i bought it on here but it looks different then my 75 column shift. i will try to put a pic on here. my question is is this the right column and how do i get the middle shaft out and what should i look up to get new bearings? i work at autozone so i will try to get them thru there. and will the ignition switch work from my column shift column? that way i could stick with my key. thanks tyler