hope you've figured this out by now but just in case you havent ill lend a hand.
you can use the 22r dizzy in the 20r head. bam clearance issue solved. (was kinda waiting to see the post about how you connected the 20r dizzy to the 22r coil
)
you can also use the upper alt bracket from the 22r.
the lower alt bracket is prolly why you need to buy a new $12 belt. you may be able to use the 22r lower bracket but im not totally sure about that.
