I made my own engine stand years ago, heavy duty and like Cosmo says, good wheels. Dad built our cherry picker as a three wheel at first, then added a rear stableizer bar latter to make it more stable.
Had them both in KC last fall for the motor teardown clinic.
We tore down a ford small block, explained what to look for and how to inspect.
Alvin could not keep his hands off of it.
http://s160.photobucket.com/user/st...005_zps9e3a78bd.jpg.html?sort=6&o=11

Don

1967 GMC 9500 Fire Ladder Truck
"The Flag Pole"
In the Stovebolt Gallery
1946 2-Ton grain truck
1946 3/4-ton pickup,
1953 1-ton pickup
1957 1-ton flatbed dually,
1954 Pontiac Straight Eight
Of all the things I've lost in my life, I miss my mind the most!