I was looking for similar surround speakers to integrate with my Von Schweikert VR35s and LCR4 awhile back. Lots of ways to go but I ended up settling on a pair of Living Sound Audio (LSA) 0W on-wall surrounds. The rosewood finish is beautiful and, for home-theater use, these proved to be a nice fit. But, to be clear, I've not heard the TS350 or any other Von Schweikert surround so I can't speak to how well they match. There is an upgraded "signature" version but I didn't go down that path.
I did see comments around (perhaps even here on AC) regarding the similarity of LSA speakers to VSA but personally haven't a clue.
You can find the LSA speakers at Underwood HiFi and HiFi Heaven at pretty good pricing.