No experience with any of them. However I would go with one of the first two, mainly because of their reputation and the fact they have been in business for many years and have a good track record. Just an FYI, they are both well known in the Netherlands and while not as common as the the two wheeled cargo bikes are well respected. Also parts can be ordered direct from the Netherlands if needed. I have done it several times for hubs that I needed for my city bikes that were not sold in NA.
Aaron
