Recommend a combination seat

[hilwithonelary]

I need a reasonably priced combination seat for DS (4.5, 44 inches, 45 lbs) that can be purchased at Target. My mom needs one to pick us up at the airport. She had one, but accidentally sold it at her recent garage sale instead of the Cosco Scenera she was supposed to get rid of.

ETA: Ease of installation is a plus. My sister will help install it (no kids, but generally great at following directions for stuff like assembling furniture). I'll check it over when I get there, but it would be great if they manage to get it right.