Well did it work. I have a similar issue I need to connect 9 USB-6353, 3 CanBus, 3 GPIB units to one PC and just learn of the anywhereusb from digi.
If the distance is your problem, just follow one advice from one of the links shown in a previous post.
Get a cheap PC with a 12 port USB hub (get a reliable industrial one). Place it where your USB HW units need to be. Connect to this PC from any distance using your preferred network method (Ethernet for example with Network streams, network published VIs, etc...).