which capacitors for Klipsch KG^2 crossover upgrade?


I picked up a pair of well-worn Klipsch KG^2 bookshelf speakers for my office
Waxed the walnut veneer with some Briwax and got ithe cabinets looking great again
Ordered titanium tweeters from Crites speakers

Now I need three capacitors for the crossover network:
4 uF
8 uF
24 uF

I can solder but I know nothing about different types of capacitors and the relative cost-to-value
What is a good value option for these speakers?