CZ then!
You can usually pick up second hand 452's, Americans or Varmints for around £100, new ones £250-£350. I wouldn't bother with the 453 the only difference is a set trigger which isn't much use for rabbiting. Lots of gun shops even do packages including a SAK Moderator (need a slot for this on your FAC tho), then it's a recoiless, virtually silent rabbit basher.