here are two types -that yellow one above is sure nice!
I designed the big one so all running could be done standing up and walking around it -
after a while, standing bent over to hold things gets really old . The table on the iron one is about kitchen counter height. It was really easy to make - all pieces are simply 2x2 iron - straight cuts with overlaps except for the mounting frame.
I hate complicated stuff- -so I try to do things I need, as easily as possible
Ed's stand is a work of art - designed to fit in a 323 Mazda-- really !
Mine fit in between the captain chairs and front seats of my last Chevy van. but real criteria included something which could be wheeled and parked in garage. the wheels only touch ,once the stand is tilted forward
I once did a magazine review for an engine which had a mid range (3000rpm) shake so severe , it made that stand skitter on the concrete ! It was a "conversion type engine that would only start n run with the head facing down- otherwise the plug never got wet -

What a beauty!!!