I have the same coach but a 2005. It is a great RV. You do need to change the tires. RV tires do not get enough use so the oils in the tires do not get distributed in the rubber and all the setting causes a lot of stress on them. I know it's hard to throw away all that trad but it the nature of the beast unless you are using it all the time. Yes you do need to check the alignment anytime you get tires but the chassis is usually done before they build on it and add the weight so yes it usually needs it when you first get it. I am about to get my 3rd set of tires this March. I use the Goodyears and have had great service with no problems. Take on here what you read with a grain of salt. Do you homework and fix your RV from a experienced source not recommendations from a lot of people you don't know whom are guessing most of the time. This is a great place to get ideas but it is a fraction of all the RV people on the road today.