Invisalign with gum disease

Hi! So I’m desperate to get a gap in my anterior bottom teeth fixed but I’ve gone to a periodontist and have gum disease in three of my rear quadrants that he wants flap surgery and bone grafts for. He said my front teeth are all perfectly fine, it’s just my rear molars that are the issue right now.

The surgery is way too expensive for me right now. Has anyone had any luck with limited anterior Invisalign treatments? Is that an option, so that I can focus in on just the gap in my bottom front teeth?