Not having the washer and dryer is not that big a deal. There are lots of threads identifying the long drier times, the inefficiencies, and water consumption and disposal using RV washers and dryers. Lots of campgrounds for bigger rigs have industrial wahers and dryers to take care of that concern.
I echo the suggestion to really check the tires. In the RV world, unless you are a real travelling full-timer, you'll never wear out your tires before UV and such will make you replace them........and they're not cheap.
Given the job they handle, don't just buy the cheapest ones either.
Also, you mention the low mileage....no surprise.....but you may want to check the fluids for the motor for that period too. Can the previous owner show maintenance records? If not, an oil change, rad flush, possibly a transmission fluid change, steering and brake fluid might be worth checking. Small investements for peace of mind.