I have a few questions about my clutch. #1 the clutch peddle grabs at about 2 inches from the top, how much clutch life do you say i have left? #2 The main rear seal leaks a little bit. Every once in a while i smell a little burning oil (i believe from this) how big of a job is it to replace it? & is it worth replacing the clutch and possibly the slave cylinder at the same time? is it something I can do in a weekend? or possible afternoon?