With the wide spread front wheels it will give you a lot of stability. How do I know? I tried moving a crate gen 2 Hemi with the front wheels closer together on a stand and I couldn't keep it from tipping over. I had to buy a stand similar to what you have.
It does look a little thin on the upright.. I am gonna pass on it.. I was kinda wondering about the wide footprint and was hoping I could find a brand or someone with some knowledge so I could see if there was a heavier unit available.
It may be a little smaller on the upright, but if those braces are any good it probably has a lot of strength. The steel in that upright looks as large as what was used on cars for frames.
I like it. looks like you could straddle one of the sides with a hoist. I used a cheepo HF, but added a removable anti-tip bar. No casters on the add on, Just slid blocks under it