hey i have an 1990 automatic and am planning the sr20det swap. should i go to the junkyard first and purchase a stickshift tranny? if i should is there any wiring that needs to come along with the tranny and any other parts? also since i have the sohc does the tranny need to come from and sohc or it doesnt matter. or another possibility/question is if the 91-94 ka engines drops right?