Thanks for the reply!No reason why it shouldn't hold. Have seen plenty of others with that arrangement.
Looking at your sketch, is the table length going to be length ways down the van or across? Do a test with a similar size scrap/spare piece to check the best place for clips/legs before you commit to holes in your table?
I’m definitely going to test the size with cardboard first. My first thought was to have it length ways down the van so we can sit side by side on the bench.
My size guide is 45 x 75cm which is similar to some standard table top sizes but it can be whatever size fits/suits as I’ve plenty of the oak veneer ply leftover.