This style of cooker was used in Japan like 3,000-4,000 years ago. So it is nothing new.
I have some stain for the stand and I am going to add a couple boards to strengthen it.
Then I think I am going to try and do what this guy did and pour a cement top on it.
I have a red patio block to go under the grill this will also give it more clearance on the sides and protect the wood on the bottom.
That would hold up better to the abuse it gets.