If it were me, and its not, I would drop the Munich altogether and use weyermann bohemian pilsner, and lower your 60 min hops to get 20-25 IBU, saving the rest later additions. Substituting a higher AA noble hop at 60 min would not hurt. I have used Perle. You will need more yeast. If you click the starter tab your yeast is in the white window, double click on it and you can enter the yeast production date then increase your yeast package count until it gets to or over the 'yeast cells needed' number. Looks like you are doing a decoction mash. They are difficult. If you stay with it I would shorten your protein rest by half or better. You may want to try a single infusion light body.
I don't have any method on temp control without a fridge and temperature controller. Maybe someone else can help?