You can get the bleed out of the quilt (option #5). It doesn't matter that it went through the dryer. Dryer heat is not enough to permanently set loose dye particles. There are a couple of different ways to do it.
(1) Here is a link to another thread involving a bleed on a show quilt. Read through entirely to the end to find out how she used Synthrapol to remove the bleed.
Fabric bleeding disaster, is it possible to fix it?
(2) Another method uses Dawn dishwashing soap. Here is a link to it:
http://andsew4th.blogspot.com/2015/0...ing-quilt.html
Edit: Dawn (especially the Pure type that is clear, not blue) and Synthrapol are apparently very similar products. I have purchased Synthrapol from Amazon.