Hi Joe, If your going to keep the 40, go ahead and use it. It may do fine with something like an APC 11X4. Then if you get a 46FX it will bolt up in the same holes. I have a nice used OS46FX for $80 shipped. If your interested, you can e-mail me for details. If your a Super Tigre fan I also have a "NEW" 51 ringed for $95 shipped.
Fred
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