green is original area.
Its hard to explane... yes you could change just the firewall forward but then the Top rail tr1/tr2 would not match the same angle as BR3 and BR4 so what i did was bring out br3/4 to the same angle that tr1 would be. this gave me a little bit more space in BR10. best way i can explane the way it sticks out is by getting
this kinda shows you why its out more.
red shows original, blue shows my one green shows the length of U1/2 and why its sticking out.
It now sticks out 7mm lol, ok i have a idea i can do a front frame type thing and take a wedge out sould not be too hard to work out