I think you need to raise your budget or find an old Sears or Huffy to rob the hub/wheels from. as Trailrider says your spokes likely will not work so they will run atleast $32 and maybe alot closer to $72. how old are your current wheels? unless you can build the wheel yourself a shop may not want to rebuild your old rim into new wheel.
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk