I bought my gloves at Cathay for around $45 if I remember, it came as a kit with the Panther cloth and some cleaning fluid, brand Kinetronics. Probably $20 or less alone.
http://kinetronics.com/store/asg.html
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I don't remember my gloves being so expensive, mine were $20 or so, same for the brush.
IMO, get the bigger brush, esp if you scan 120mm, the smaller one is too small.