As a German, afaik if you want to permanently move to germany you need to prove that you can support yourself financially (or someone else will?), so you will need a job offer and or some savings.
There is no requirement to not be disabled, but being disabled could make fulfilling those requirements more difficult.
Every commercial fuel recycling plant in existence releases large amounts of radioactivity into the air and water, so I dont really see them as a good alternative.
Here is a world map of iodine 129 before fukushima, its one of many radioactive isotopes released at nuclear reprocessing plants: https://pubchem.ncbi.nlm.nih.gov/images/iupac/j_pac-2015-0703_fig_076.jpg The website where I got it from: https://pubchem.ncbi.nlm.nih.gov/element/Iodine#section=Isotopes-in-Forensic-Science-and-Anthropology
Considering how long it would take to build safe reactors, how expensive it would be and how much radioactive contamination would be created both at the production of fuel and later when the storage ever goes wrong after thousands of years, I just dont see any reason to ever invest into it nowadays, when renewables and batteries have gotten so good.