Should I recap my speakers? If so who can do it?

The parts costs quoted seem reasonable. I did some speakers for my neighbour, cost about $1000, and dramatically improved every aspect of the speakers' performance.

I'm retired too, and it's my hobby too, but I'm not in the business. The posters above should be able to help you a lot.

But don't go cheap on the treble crossover capacitors. I would spend the bucks to get film and foil, preferably styrene and tin (MIT sells a good one) on the treble signal path. In this case, you get a LOT for what you pay, maybe the best bang for buck in the whole audio chain.

As for where to buy the parts, there are several really good sources. I tend to use Michael Percy Audio and Partsconnexion.

When I got serious, that is when I retired, I built a break-out box to test capacitors for speaker applications. My experiments (two alternative forced choice, single blind paradigm) showed that the most important variable is technology: film and foil is best alternative, then metallized, then other. Second most important is materials: among the metal foils silver is best, but prohibitive; copper almost as good; tin is cost-effective; aluminum can be problematic because of the connection between the wire lead and the metal foil. Among the insulating films, styrene is most neutral, teflon somewhat bright, polypropylene somewhat muted. Third most important is brand.

The best manufacturers are very open about the technology and the materials they use - they brag about it, and for good reason. You can profit from their openness.

Quite right, ieales.

To comply with your concern, I initially experimented with an ESL based vinyl system, and classical music. This has since been upgraded to air bearing TT, etc. Current impressions are consistent with the formal experiment detailed above (I DIY all my electronics, and experiment continually).