sterling faucet

Renovating and looking to update the trim but I know these showers have super old out of date cartridges etc, and I'm not looking to get into valve replacements I just need to know what shower trim kits would fit this thing This is in Washington btw Pictures of existing one (including...

hi everybody, i already paid a plumber who absconded after he was paid, so i need to do this work myself!! (dumb i know, but i really thought he'd return... now i'm glad he didn't come back -- his work was no good.), anyway, i have a sterling faucet, at least a sterling stem came out of it...