I researched a ton of past posts on installing pavers and retaining walls. I'm preparing a bid and could use a few pointers. The customer said on the phone (haven't met them in person yet) that they wanted a paver patio with a small wall that could be used as a bench. I'm kicking around some design ideas so I can have something to show them when I go out for the initial meeting. Has anyone done something similar that you could share prices and pictures? How tough is it to do a wall with columns on either side ,and the wall be right at the outside edge of the paver patio?