Hi guys. I have a 2000 LX470 with only 106000. Very well maintained by former owner. I live in Cleveland, so lots of salt and chemicals on roads in winter. Do you guys think getting rust proofing is a good investment? There is no rust on it at the moment. I do wash it as much as I can with under body wash. I try to keep all dings covered with touch up paint. But I'd like to hang on to this rig for a long time and would like to keep it rust free.