nice job on the pegs there. what I did with my rake angle, was cut the top tube and mildly heat the down tube to the front of the motor, just bellow the bottom steering bearing. Did it all with the wheels still mounted, and pulled the front wheel in with a ratchet tie down strap between the front and rear wheels. Just pulled it back till it looked right, about 6mm gap ( may be 7mm) in top tube was about 25ish mm at the wheel base. Then just fill in the top tube with 1.5 or 2 mm plate. Keep the ratchet strap between the wheels while welding to help stop the top tube shrinking as you weld, as it will pull your wheel base out again very slightly.