If you look at my sigfile, you will see that I know "Old". Tires are a given, the 7 year thing is real. All the other rubber should still be OK. Even without miles/hours on the main engine, the corrosion inhibitors in the coolant may be depleted. Definitely get the brakes flushed. If the transmission fluid is still red and clear, leave it alone. Few AT have a drain plug and they will probably do more damage than good by draining it. This is not true of the main engine and generator lube oil.
I'm not sure why you want to add a steering damper. You should drive it some first - Unless you Know that model has a problem.
Please spend the first night in your own drive way. You will quickly learn a lot that you need to know.
Matt
