You didn’t indicated the type of things you were going to be
sanding, so the following suggestions may not be appropriate.
Micro Mark, 800-225-1066 (http://www.micromark.com) has several
small belt sanders listed in their catalog. Other sources are
home centers, hardware stores & import tool stores (Harbor
Harbor Freight has a 1"wide belt sander for about $49.00,
another model with a 1" belt & 5" disk for $59.00.
Depending on the amount of use the machines will get, this may
or may not be a way to go.