Yes something like this indeed, but I do think I'll need to fix it to a wall to use it.Put it at just above belly button height or slightly higher on four 100 mm dia 360 degree rotating lockable heavy duty red rubber tyred braked castors on a decent heavy stand with a 10 mm thick 900 x 900mm steel top .
That way you can lock it steady from any side or end if access is tight /difficult and you can easily move it as & when needed .
It takes a three meter 5cm ID scaffold pipe as a handle, so I will pull it over otherwise I think.