Ear Tumor Removal of Lily the Kitty

Lily is the kitty on the right.  She & Leo just turned 6 years old.  They are not brother & sister but were adopted together & are obviously very close. They cuddle like this all of the time.  On August 15, 2013  Lily had a benign tumor removed from her left ear; the cost was $531.60.  Because cat's ears are L-shaped, her vet couldn't remove all of the tumor.  We figured it would grow back, and it has.  The estimated cost to remove it is $700; (I'm hoping to figure a way to show the scan of the estimate).  I'm asking for $800 due to GoFundMe's fees.

Lily has been a bit of a sickly kitty.  On December 5, 2012 she had most of her teeth removed due to an autoimmune condition that gave her chronic ginginvitus.  She had gone through 4 rounds of antibiotics, but the infection kept coming back.  Researching it online, I found that the best remedy was to remove her teeth, something her vet suggested at her next visit.  (She still has her fangs & the teeth in the front of her mouth.)   She gained weight and was so much more active after her teeth were removed.  And she doesn't miss those teeth at all.  (The cost was $929.59.)

Since adopting her in 2010 I've spent over $3000 on vet bills for Lily's illnesses (I keep all of the vet papers); that doesn't include vaccinations.  Lily is a very sweet lady and I just need a little help with this.  In August 2011 I adopted a dog who turned out to also be sickly; between the two of them, my credit cards are maxed out.