So sorry i can totally sympathise i lost my 12 year old a few weeks back to a rta.Why dont you consider having a indoor cat,you wont have to worry about straying,rta`s,being injured.cats can live perfectly happy lives without having free acess to the outdoors you can cat proof fence your garden or build a run,you can also have total piece of mind that this wont happen again,and you`ll always know where your babies are.