Yes to reiterate on the values.A 21uF cap will be difficult to find.Nobody makes them anymore except for large quanity special orders.So all you do is parallel a 10 & a 11 uF cap to reach the 21 uF value and so on.Best of luck with it.To show you some caps paralleled,here are mine done awhile back.
FWIW- Stranded wire is used a lot because it is easier to work with.I used 14awg high strand count 105.
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