Best suggestion by far: Don't do it!
77 tread width is much too wide, tires will stick out of the fenders. What's wrong with using the F1 frame?
Passionate about autocross racing!
1956 F100 Panel "GRACIE"
2007 Solstice GXP racer, the "KRAZED KANARY"
Third place finish 2009 SCCA National Championships