Radio Shack MINIMUS 7 crossover upgrade

Wow there are quite a lot of audiophile people still using or have knowledge of this Minimus 7 speakers! :)
After reading replies from these knowledgeable agons members and a little from google (not much there unless somebody can point to me the info), can I ask some follow up questions?
1. What is the recommended type of capacitor and value to replace the existing one inside?
2. What are the components to build the low pass filter for the woofer? How do you connect these components together with the woofer? How do you choose between cutoff at 2khz versus 3khz?
3. The fiberglass material should be replaced inside. What are the recommended material and how dense should it be stuffed inside the cabinet?
4. Should the woofer be doped like the suggestion above? Do you paint inside and outside? Would this make the speaker less efficient and perhaps change the lower frequency as the movement of the woofer is lower?
5. How easy is it to remove the metal grills off these speakers?

Thanks for your forthcoming replies on this! :)

The original kits were sold by a long-defunct outfit called Soundaids (separate kits for minimum 7 and the larger Minimus 77) Lngbruno has all the basics right. This is really worth doing -- especially for the 77, which produced an amazing amount of tuneful bass for a speaker this size. Good luck, Dave

I played with my Minimus 7's until I got into the Lineaum line (spelling). Much better speakers to upgrade.

However, check out the forums at madisound.com Lots of stuff there.

I did the Soundaids mod to my Mimimus 77's way back then and can highly recommend these procedures! Hint: Do the woofer doping a little at a time until you get the right balance of extension vs. articulation.