There is no such thing as low risk. Investing is about managing risks. In your case your biggest risk is how long you'll need to draw the money and inflation.
To lower principal risk, I would spread the 35% position in stock to much smaller positions in many other companies. Either buy a mutual fund, or have a 1% position in 35 companies.
I would move the cash to something with more oomf. I might suggest permanent portfolio (PRPFX
) or a balanced fund. These would generate a higher return than the ~4% you are getting now (which may not even beat inflation).