You could contribute the full proceeds to your retirement annuity, or only contribute the maximum tax deduction and put the rest into another investment solution.
You can borrow funds to buy a property, renovate a property, pay off a housing loan, or to guarantee a housing loan. You cannot use the funds for any other purpose.
Of three options on what to do with your RA funds, a life annuity would give you the highest probability of income certainty – but not at the required level.