As much as I hate to patronize the Devil........................
Check in to those "Lifetime" brand tables at Sam's, probably Costco as well. They come in multiple shapes and sizes, are well made and kind of light. They generally cost less than just one of those sawhorse affairs above. If they are the right size and arrangement you could take off the legs and use the rest for something else. I've also accumulated a bunch of those aluminum foldup table with removable slats over the years. they are pretty good, but I like the Lifetime ones better. Even so, maybe just the legs/framework would work for you?
Kinda like this-
ALPS Mountaineering Portable Dining Table - XL - Save 35%