engine holder

Hi,

Not sure if I am in the right spot but I am looking for the plans to construct
an engine / transmission / radiator holder so I can start/run my new engine before I put it into the car..

I have seen this puppy for sale but the vendors want $$$$$$$$$$$$$$$. I have friends that are handy with a torch so I would rather build one..

Does any one of you guys have the building directions for one ?

Thanks
Grassy