Is this going to hold

[The Grizz]

Definitely go with 1 1/2 tube, have 2 vertical members to split length in 3rds and if they build it right it will hold. And by build it right I mean, build the front and back frames first with 45 degree corners and then join them with the horizontal members. Doing this makes your corners bullet proof. You could add a knee brace into the backside of the stand just to be really on the safe side.