cuting sw1,2,3

[SteveH]

right today while ive been in the garage ive been trying to get the cuts right on sw1 and sw3
i cut sw2 that was easy enough but i dont get how you cut the other two peices and get them to fit ok
it could just be me having a proper blond moment
but i never did understand compund angles and such like
also im after some 36 x 16 oval tube for my headlight brackets,i tried my local steel stockholders and they dont have anything like it

regards
steve