i put your recipe into brewtoad for a quick look.
i have your FWH addition set to 80 minutes assuming it takes 20 mins to reach a boil. i also changed your 12 minute additions to 15. after all this i'm at 66 IBU's total, 26 from your nugget addition and another 10 from your FWH means over half of your IBU's are just bitterness. this is why yooper is busting your chops about not enough late hops.
i'm not sure of your flavor goals so i made adjustments to hit your numbers and tried to take advice from this thread in mind.
60min 1.0 oz Cascade
15min 0.5 oz Cascade
15min 1.0 oz Chinook
15min 1.0 oz Columbus
05min 0.5 oz Chinook
05min 0.5 oz Columbus
05min 0.5 oz Cascade
00min 1.0 oz Simcoe
this is 67 IBU's but only 15 from the 60 minute addition. the rest of your bitterness is providing flavor and aroma. if you'd still like to use a FWH you could split the 60 min addition or, since you'll have .5 oz of cascade left over, you could add it to your bittering additions. if you do this will put you a little over 70 IBU's but it might be needed to adjust perceived bitterness. any other left over hops i would add 3 days into fermentation.
btw, this thing sounds like a pine bomb. chinook, columbus, simcoe with moderate amounts of cascade is probably going to be pine dominant. if that's not what you're looking for swap out a 15min columbus addition for 1 oz cascade.