Managed to drill out the holes in the side skins to take the fuel line grommet, pitot tube and vent line. Fitted the left side F-717 longeron and placing in a vice with pipe wrench wrapped in cloth I gave it the desired twist. Fitted in position after marking where the 4 bolts are to go, drilled these through to the lower engine mount bracket. Made the right side F-684 gussett and fitted this. Driled the 4 bolt holes in the right side F-717 longeron, fitted the bottom skin and match drilled the holes in the skin to the longerons. I took quite a while to get this right and perfect before drilling. Manufactured 2 x F-719B angle clips, drilled out the rudder cable routing holes in the F-709 bulkheads,also drilled out the platenut holes and dimpled holes.
