I've sold 3 of the NASA hoods in the last 2 years & each one went for over $ 500.00 . next they are ackward but they ony weigh about 50 lbes. I have a rack built in my rafters of my garage so they can sit in/on it when they are not needed to be down. I always have to put them up in the rack by mysefl. They are made of some 2X4's made into a U-shaped rack so it sits horazantal to the rafters. It sits about 10 inchs lower then the rafters , & the ceiling is an 8 foot ceiling. Again I put it up there by myself. It's ackward but not that heavy. But it can see you would not want to put it up on the roof of the sub. by yourself, it would scratch the heck out of it. At least the roof rack. By the way getting it for $ 150.00 is a great price. The guys that bought mine both came from 400+ miles to get the ones that I had & thought they got a good deal on it.. Also If you need the correct screen that goes in the scoop , in th back of the scoop I have a few of them left. The price for the screen, & these are not the plastic pieces that are usually gone or broken but the true metal octaganial design screen pieces that go in to let in the fresh air through the hood if you would have the Ram Air system, they sell for $ 23.99 plus the shipping. Yes I do ship to Canada too. If your interestad in a set just let me know & give me your postal code so I can get a shipping cost. Thanks Rex.