Where do you find F1C100s for $.75 @1ku? How much more would it cost to upgrade the SoC to something bit more modern, like V3S/R11 (or others from that family)?

Where do you find F1C100s for $.75 @1ku? How much more would it cost to upgrade the SoC to something bit more modern, like V3S/R11 (or others from that family)? https://www.cnx-software.com/2018/03/30/allwinner-s3-camera-soc-includes-128mb-ram-an-i2s-audio-interface/ https://www.cnx-software.com/2018/03/30/allwinner-s3-camera-... > I’ve been told V3, V3S, S3, S3L, R11 are all the same chip, but with packaging variations.