I changed plugs in my 97 today and had a little bit of oil on the plug boots on the drivers side. How hard are these to replace? I am not afraid to do it myself, but what is the easist way to do it? Anyone whos done it have any tips? This isn't my daily driver, so getting it done fast is not important. Also anyone have an extra set of gen II valve covers for a reasonable price? I would love to have some powder coated before I change them out.