Awww Scat sorry to hear about your moggy
my one went missing in March and has never been found even though he was chipped
I miss him terribly but so did his brother, he has settled down now though!
I already had a cat and when these two little ones came into the home the other one would not come in for 6 months. I had to feed her outside in the garden. But it was getting colder and I finally stopped. She is fine now but very rarely ventures upstairs, although she used to sleep on my bed
I would wait for a little bit before getting another one as they bond with the one who is there and when another cat comes in tend to be territorial just a word of caution there