Okay   what I am actually planning to is:

I have a shipping container that weighs  8000 pounds.
( and yes , Olin is correct that I messed up my units of measurement  
in a previous post )

I actually weigh 17.5 stone ( I am sad to admit )

I want to pull the container down an incline that drops about 1 rod  
per 100 feet.
I am going to assume the incline won't make much difference..... it  
may assist me a bit.
I will put some logs under it to reduce the drag friction.

see image at
http://dent-the-universe.com/tikiwiki/tiki-list_file_gallery.php?galleryId=4

I have winch that claims it can lift 2000 lbs
My plan is to use a system of pulleys to move the container.

The Truck is green.  The container is blue.
The pulleys are red circles.  The winch is a violet square.
The tree is a green line.

Will the winch have a mechanical advantage of 4 due to the pulleys ?
Will the winch be powerful enough ?   I expect the container moves  
with less than an
8000 lb pull.

Best

Gus
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