Well, I finally purchased a used foldable jogging stroller, made by B.O.B. I think, and it has 10-inch wheels. I'm going to use it as it is around here before I make any modifications to it. It was marked down from $180 to $100, so I went ahead and purchased it.
Wouldn't you know it, though; this evening when I was out on my bicycle I went by a pile of "junk" in front of someone's house and there was a stroller designed to carry/hold a baby carseat. While the wheels aren't as good as the jogger, I got home and took my wife's van out and snagged it from the pile. This one has a cloth basket which will hold a camera case, a camp chair, and my tripod without modifications. Although the wheels are smaller, I believe it will work well on boardwalk and improved trails. I'll get some photos when I get out to use them.
Now I just have to rig a place to hang them in the garage!
WM