Um, that's kind of a weird mix!
So you are trying to end up with a single effective capacitor of 2.5uF ?
With those high quality caps if you absolutely must do something funky, bypass them with the same cap.
That is, if you go with Jupiter, use 1.0 and 1.5 of the same brand/model/voltage. It will cut the ESR and inductance in approximately half, while maintaining the rest of the qualities you were looking for.
So you are trying to end up with a single effective capacitor of 2.5uF ?
With those high quality caps if you absolutely must do something funky, bypass them with the same cap.
That is, if you go with Jupiter, use 1.0 and 1.5 of the same brand/model/voltage. It will cut the ESR and inductance in approximately half, while maintaining the rest of the qualities you were looking for.