Backup plan is to freeze my head, and wait for the technology to restore me from cold storage, even if they have to scan my frozen brain synapse by synapse or even closer than that.
Won't work because in the future noone will give a shit about you to go through the (Probably expensive) procedure to revive you.
I invite you all to help in building this afterlife.
Meh. That will take too much time, too stressful and considering you will need to convince the rest of the world: impossible.
Besides, why do I want to be old longer? My choice is to enjoy the time I have of my existance with my loved ones and die at about 75. Thats a good age to go before the really terrible age-related decline really hits.