[trinity gl 1970]

ok guys i think i got it nailed down now i am going to be running cb disc brakes front and rear i am also going to purchase a cb narrowed front beeam i thinking two inches or should i go more i really want those wheels to fit they just complete the look i have going in my head and way it is a standard 1970 i am going to run cb disc front and rear and have the beam narrowed two inches thanks for any info you guys can or will supply