Walmart has the LEGO Ideas NASA Apollo Saturn V 21309 for $105 with free shipping. It features 3 removable rocket stages, including the S-IVB third stage with the lunar lander and lunar orbiter.
Amazon has the 579-Piece LEGO Classic Ocean's Bottom Building Kit (10404) for $19 with free shipping. List price: $30. It features a mix of bright and colorful pieces that allow for open-ended creative play, includes wheels, shapes and eyes.
Has excellent Amazon Reviews.