In regards to the IR renewal I'd perhaps be a little wary that not renewing might make the next time you do a lot harder than it needs to be. I'm guessing it'll just be a sim renewal you have to do?
Also the medical might not be worth renewing to be honest, you can still fly on the class 2 privileges whilst doing hour building and when you do get any interview offers then renew at that point. I managed to get my class 1 renewed for £30 so there was on reason for me not to.