It looks huge in the photo…I think the perspective made is look larger than life. But with the extra support, I can climb up on that vice and the bench/cart doesn’t tip. (It might be riding on only one wheel…but hasn’t tipped yet 
)
I bought it for about $100 about 35 years ago. Didn’t really have the money to spend at the time: we have all been there. 
So I think we have this figured out, and I am pretty sure it will work. No need to thank me:
