Typically 66,000 miles is nothing. When you get closer to 500,000 you may want to consider taking it to the dealer to look at, just change the oil at required intervals.
That little engine is nearly flawless. If you take care of it with proper oil changes and such it will last you a good long time. The towing capacity is excellent and you'll do fine with your Civic behind you provided you don't forget that it's back there.
Enjoy your adventures and good for you to get behind the wheel and enjoy the driving part also. Have fun !!
