I found it difficult to judge how close I was to the right or left road lines. I knew I was driving too far to the right and had to keep correcting my position on the road. I read a post on RV Net and it really helped me. I now have a small piece of tape low on the windshield. If I put that tape on the center line, I'm exactly in the middle of the lane. If I put the tape over the line to the left, I am right on the edge of the center line. It took a couple tries to get it exact but that little piece of tape really helps. Now I just glance at the tape to check my position and driving is no longer stressful.
In 2012 I purchased my Southwind Storm with 23500 miles for $23000. I did not have any major issues to deal with and the MH has been a good buy. This year I put on 6 new tires ($2350) and last year I had RV Armor recoat the roof with a life time warranty ($3400). All maintenance items but not cheap. Also 4 new shocks, Safety Plus for the front steering, rear track bar and some other odds and ends. All fluids and filters changed. I guess what I'm getting to is that a older used MH is going to need maintenance and repairs based on age. Just go in with your eyes open and expect to invest money to make your MH safe and reliable. Just my opinion.
My Chevy Tracker is very low to the ground and I was looking at the same problem. I purchased an adapter for the toad that would hook up to a Blue Ox tow bar. Works great. The adapter and tow bar were purchased on ebay from two different sellers. Problem solved for about $300 dollars. Now I can sell the other tow bar and get some of my money back.
Had the roof on my 2000 Fleetwood Southwind coated last year by Rv-Armor. They cleaned the roof and removed all of the sealant around the vents and pipes. I had them replace any of the items that were made of plastic before applying the coating. They apply 2 coats a day apart and then it cures. When I first looked at the roof it was full of bubbles and looked horrible. I was warned ahead of time to expect the bubbles and was told that within a week it would smooth out. A week later I took another look and it was smooth and looked great. Its been a year and I have no regrets. I have a roof that has a lifetime guarantee, helps insulate the roof, reflects the heat, and is maintenance free. NO more black streaks and it is much quieter when it rains. It was $100 per foot for my 34 foot motorhome and was worth every penny. It has a lifetime warranty on the material and labor. The warranty is transferable to its next owner (not in the near future) and should be a good selling point. You can check them out at www.rv-armor.com. Best of all, they will come to your location and do the whole job. No need to travel to get their product. I'm one happy customer.