As promised some pics and drawrings,
I shall try and talk my way through this build,Hope you can understand my description on how i built this bench,if there is anything you don't understand,please ask.remember i built this a long time ago,
I do have another that i want to take pics of,unlike this one it is made from 2"X1" Box,and is a little bigger,
although not necessary better,i will explain why later.

Hydraulic Bike Lift

Hydraulic Bike Lift

Hydraulic Bike Lift
OK,the first two pics are of the bench top,the first drawring gives you the dimensions of the top,
Notice the side view shows that i doubled up on the side tube'ssorry should have drawn that in.