Try this MTH dealer in PA.....this is from the MTH product locater website....I know this is showing the set being available but I believe they have the B unit as well:
Dealer
VALLEY FARM MARKET 18211 BENNETTS VALLEY HWY WEEDVILLE, PA 15868
For the items you requested, the following were reported in stock by the retailer you have selected on the listed As Of date. MTH Electric Trains cannot guarantee that the retailer still has this item in stock at this very moment.
F-3 RK SCALE PASS. TRAIN SET W/PROTOSOUND 2.0 - SANTA FE
price $599.95
3/26/2017
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To show ALL items in stock for this dealer, click below: <form action="http://216.214.83.119/external/panel3.asp" method="post"><input name="All" type="Submit" value="Show All" /></form>
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