Weird question about fitting wheels to workbench
So we have a big heavy home made workbench made of wood which is sitting outside next to the allotment shed because there is no space inside. At the minute it is a pain to move around because needs two people to lift and carry where it can be useful. If it is just me dragging it around it damages the grass and the legs of the workbench. I was thinking of a way to make it easier to move and considered fitting two large-ish wheels to one end so I can move it around like a wheelbarrow. Can't seem to find anything to do this suitable except.. wheelbarrow wheels which are a slightly expensive option for the budget I had in mind. Does anything exist that might do this, trying to be budget conscious so maybe even making a couple of wheels out of wood would work... any suggestions welcome!