You will be traveling up and down US59. From PPL to Sugarand you will see just about every restaurant you can imagine. Not knowing your taste preferences it's difficult to recommend a restaurant. My suggestion would key into Google "restaurants in Sugarland, Tx". It should provide a good selection.
You can do the same thing for attractions, but if you haven't been there, the Johnson Space Center is not too far away.
I think you have chosen one of the best dealers in the USA for RVs, whether you buy directly from PPL, or from their vast consignment lot.
Good luck