AAshley333 ... Thank you for showing me your virgin fabric and your other quilt too.
Beautiful choices!
I was thinking this through a bit further .... to get 20" extra in each direction, if only done as borders (multiple options) the bordering may over power the centre of the quilt. Being that you have the extra fabric, my thoughts would be to go for one more row across and down of the 4PPs. Of course, that is assuming you have enough of the virgin fabric to do it all.
Then audition away for which border option looks best.
Would let you showcase more of the 4PPs , and still have a nice border around.