I hope the introductions go well and they all go on to live in harmony. How anyone can cope with more than 3 is a mystery to me - though I did once say that about 2 I seem to remember.
I didn't think that 3 would be any different from 2, but it is hard work, I'd have more if it was only up to me, but OH wont have more than 3 in the house
His 3 live outdoors, but both parties are often walked together and they all get on fine ages ranging from 12 years to 3 months well and 10 weeks now, but Aidee hasn't met the outdoor gang yet. Stan the terrier pup does the older guys head in a bit tho, so its just a matter of keeping him off them.
Good luck Gill, I'm sure you'll manage just fine