Sorry to hear this, I wouldn't wish this on anyone!! You can do a search of my posts to get some of the details of my story, but it is way too long and depressing to post my full story. But in summary, I have been dealing with the same shit for a little over 2 years now; my GFR plummeted in a real short time and the biopsies showed that the immune system attacked the kidneys(but no sign of any current autoimmune diseases and not sure what brought it on).
One thing I can tell you from reading your posts is DO NOT do peritoneal dialysis!!!. I did and almost died because it didn't work. When I finally made it to Mayo Clinic because I was in heart failure and my EF had dropped to 25%; the nephrologist there said that he would never recommend peritoneal dialysis for someone my size because it just doesn't work well with big people. You can do hemo at home with a product called NxStage; in fact that is what I would recommend because, if you still have a decent amount of muscle left, you are going to need more than the normal one size fits all 3 times a week they do in the dialysis centers; and insurance will pay for it at home with NxStage but not in the centers.
My best advice is to surround yourself with a strong support network of friends. I would have given up a long time ago I didn't have so many incredible caring people around me; especially my wife. Also be patient, there are so many hoops you are going to have to jump through and it is tough when you are already worn down.
If you have any questions feel free to ask or PM me.