Cecilia, I'm not aware of a 201 clone. However the 15 clones are very common and very good. For what I sew, a 15 is as good as a 201. The 201 harp (throat) is a little larger than the 15. Direct, belted or treadle is personal preference. I can deal with each with equal enjoyment.
As to the binding attachment, personally my fingers can't manipulate a good binding without the attachment. Mine is 1". The gentleman I purchased mine from has many widths-not sure he has 1 5/8. I got the impression he made them himself so he might be worth talking to. He sells on eBay and I will get his moniker for you if needed.
Also, Sailrite yesterday started a sewing basic blog which will give a good view of their machine. It is here.
Http://sailrite.wordpress.com/2014/0...ewing-machine/
Ron in windy Mid-West