Yeah I've had a lot like that given to me Norm,had a few where people have bolted wood on the top and then bolted the handle to the wood or bolted the handle closer to the centre and sometimes the handle is bolted on the side of the base.
If wheels are needed Norm, I think there has to be a easy way of fixing the insides of the wheels you have. I was thinking of trying some sheet metal.
Looking at a couple of Swift bases they look Gal, the one on the left is not Gal.(first image)
