it should be simple enough, just unbolt the handle and pull on the cable. there will be a rubber piece that goes into the fire wall. u just pull it out, then run the new cable through and pull from under the hood to get the stopper into the hole.
where exactly did you get that and for how much. most times you buy it with the cable, look in LMC, they have stock replacements, or go to a junkyard, you can get everything there as long as they have a bronco.