I think you could just use a table stand to go with the mast for outdoor use (yes it folds up). And completely forgo the need for four additional legs. Also, if you don't use BB's mast, this same company will supply the masts in various lengths.
We have one. Just replaced the table portion with the swivel kind this summer. Have to find it. Can post picture of the replacement later this week as cannot remember brand and doing this reply from iPhone not my computer.