I haven't read this complete thread,
but why not buy bipolar caps?

Perhaps BGMicro or similar outlet in Canada have surplus.

Here is an Australian outlet, though postage would be dear I would think.
Bipol 10uF/50v AU$0.70

http://www.altronics.com.au/index.asp?area=3Dprod&grp=3D94

Colin
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cdb, colin@btech-online.co.uk on 10/03/2011
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