It is difficult to read.
Sorry for the loss though.
The serial numbers – you’re better off registering them here: https://www.immobilise.com/
The police use the database when they find stolen bikes.
Also browse gumtree. Popular place to sell stolen bikes.
Your local plod will do nothing proactively. It’s the absolute lowest of priorities I’m afraid. Best chance is someone finding them or the police happen to raid a house for something else and then find stolen bikes.
Reality is they’re long gone. Serials are filed off. Bikes broken for parts probably.
Vent, then chill, then contact your insurance and get replacements. Sad but that’s how it is.