Hello, new guy on the forum and to the Xterra. (Titan and D21 guy lol) I am purchasing a 2001 with the V6 blown but it comes with the replacement motor (90,000 on it). I plan on placing the replacement motor on a engine stand and doing some PM/upgrades before install. What things would you Xterra pros suggest I fix/tweak/replace? I do not have an unlimited budget but would like to know what is the key things to look for/do.