Need capacitor recommendations for tube amps

I have read great things about the V-Caps for use in replacing stock coupling caps in tube amps -- but these can get fairly pricing when considering 15 or 20.

What would be a good sounding, and less expensive, alternative?

Russian Teflon caps
Here are some thoughtful comments on coupling caps by Mike Elliott of Counterpoint and Alta Vista Audio.
Where can Russian Teflon caps be purchased?
Tony Welsh on Ebay or Gintaras (from Lithuania), are the main sources.

Dynamicaps are super detailed without being harsh or edgy. Real nice. Not too costly. You can get them from

If you need higher values at low cost you may want to try Black Gate C caps.

Ps. I have no connection to partconnexion other than being a very happy client.