Creating what amount to a custom job loss insurance policy is risky. Consider consulting a competent actuary and possibly finding an underwriter. Your favorite [cryonics] insurance agent might give you some pointers there. The premiums will be high, at least initially, even for a group insurance, and the benefits would be quite restrictive. But compared to people not donating at all, could be still worth it.
Creating what amount to a custom job loss insurance policy is risky. Consider consulting a competent actuary and possibly finding an underwriter. Your favorite [cryonics] insurance agent might give you some pointers there. The premiums will be high, at least initially, even for a group insurance, and the benefits would be quite restrictive. But compared to people not donating at all, could be still worth it.