I have the 1000 pound stand and it works ok. First thing I did is make a longer handle for it, just 1/2" Galvanized pipe 3' long.
I needed a jack handle for my crane, I started with a 3' pipe sitting in the corner and was going to cut it to length .... just works perfect as is, also doubles as a handle for the engine stand. The longer handle gives more leverage and control when turning the engine over.
My original intentions were to weld in a angle brace from post to base to add more stability .... Then I have some scrap square tubing, I was going to make a wider front base.
This would give more stability to prevent tipping over. Simple things to do and still may do it sometime.
I think so far the heaviest engine I've had on it is my flathead V8 .... It works fine as is. I also have seen others with same stands and have 426 Hemi's ... 440 big blocks complete and turn them over on the stands and not drop them or tip over.
I have also seen where A guy rolling one in a garage and get a wheel caught in a dip for a drain and tip it over ..... so they can tip over if not careful.
With all that said, the 2000 pound you list is tits! Very stable, foldable for storage .... very professional looking and would be difficult to ever tip over impossible to go wrong with it. .... You will be the talk of the town with that stand
Or be normal and use the other stand.