On excellent suggestions from the group, I replaced the straps with
chain. I used De-Sta-Co clamps to secure. It's quick and doesn't
allow any movement of the bottles once adjusted. I also added a
couple posts to store the bottle caps.

http://metalworking.com/DropBox/OACart03.jpg
http://metalworking.com/DropBox/OACart04.jpg
http://metalworking.com/DropBox/OACart05.jpg

Pete Keillor

A couple photos of the OA cart I just finished (other than paint).
It's too heavy but rolls well. About half the weight is the wheels.
They were cheap, but are cast iron and solid rubber. There are a
couple of half inch steel pads welded under the front edge of the
bottom plate. This keeps the cart resting on the tires and the pads,
which prevents rocking. It seems pretty stable.

I found a small toolbox at Ace and bolted it on.

http://metalworking.com/DropBox/OACart01.jpg
http://metalworking.com/DropBox/OACart02.jpg

Pete Keillor