I got my mum a hutch and run combo for mothers day for her guinea pigs and me and my dad built it last sat night when she went to bed and it took ages loads of the holes didn't match up and the screws did not grip at all i had to put loads more in to secure it. If it was for my rabs i would be mad as i think its not that well made but the guineas seem ok in it and are trying it out for an hour today. this is the one
http://www.happyhutch.com/ProductDetails.aspx?productID=168&categoryID=6
I believe the hutch you are talking about is one of the ones they buy in and dont make themselves as they seem to be sold in many different places.