Frank, I'm so sorry to hear that you were affected by a fire. I hope that the people around you are okay; the things can be replaced, mostly.
From what I understand, season 6 of Silk Stalkings is the only one that's been released and that's only on Amazon.com for download (Carolyn has a link on the site which gives her some benefit if you connect through there) and according to Stephen J. Cannell's website, the other seasons won't be released.
Kung Fu: The Legend Continues isn't out on DVD either, but there are among the masses, honest fans who are willing to make copies on DVD for you (until the official ones come out) and request you pay for materials and postage but not for the actual shows themselves. If you're paying more than materials and postage, someone is making a profit off the show and shouldn't be. Other than that, many of the episodes are on YouTube.
Wild Card has shown up in repeats on Lifetime Real Women - which is a cable digital channel; although they run periodically, they are sporadic and I haven't followed the channel. Thrill of the Kill was made for Lifetime, so you may want to check their websites; it may show up on Lifetime Movies Network.
On another board I frequent, there was mention of a company called
Shout Factory which bought the rights to Simon & Simon after Universal declined to release the show beyond Season 1. Season 2 is coming out soon. The Shout Factory has a message board where threads can be started about TV shows that haven't been released and whatever support the show has, similar to voting for shows on TVShowsonDVD.com.
It might be worth checking out the board over there and starting a thread/submitting a request. If you do start a thread, let us know over here so that anyone else who wants to express an interest can do so.
Good luck replacing your collection.