I have spent some time mocking up  the roof and seeing just how much I need to take
off the top as the pic shows I am at about 1" might have to take a little more than that off the front edge so I can get the right curve,

 I will leave the pieces like they  are and go down to the shop and look during the week and see if I like it and it has the right shape       then go ahead and get the die cutter out and trim off the excess. measure many times and look  to see if it is right
I don't want to get it all fit and find out that I need to weld back a piece