For mine i changed it a bit , mine is longer and higher than shown in the plans.
It can easily lift my motorbike which ways about 170 kilo.
I also use it a lot as an extra workbench.
Step 1: Floor and Arms
Don't forget to put the unwelded arms in place before you weld them.
Step 2: Tabletop
Step 3: Securing
This is how i did it.