Congratulations! I also know you'll win the "discussion" and Fawn will be yours. Minion seems like a real laid back kitty, and if Fawn is too, it sounds like there might not be many problems, but it's best to take everybody's advice and go slow. If, after a a day or two behind closed doors, they seem really interested, you can try introducing them, but be prepared for hissing and growls on both sides, but after that it might be hell - but then again it might be a piece of cake. I know quite a few of the PT kitties were out and about and getting comfortable in only a day or two. But you have to be careful and err on the safe side because there are also the sad tales of those that still aren't hitting it off after many months.

I think it's great that you're thinking of Minion and wanting him to be happy, and I know he'll take to Fawn and they'll be best of buds.