First off, good for you for wanting to manage this and not letting it just go into default!
You can do a back of the envelope with the calculator at finaid.org (
FinAid.org ICR calculator). Income Contingent Repayment will probably be high with your income and (I assume) single status, but may be the lesser of evils.
With that much in loans, it might actually be worth spending the time to take and pass two classes every fall and spring semester at the community college (ensuring to seek a degree to remain eligible for deferment). Assuming $100/credit hour + $100 per book plus some slop, it would cost about $1500 per year to stay in deferment. While CC classes might be an ego blow for a graduate degree holder, they're probably more manageable with a full-time job. Obviously if you could get employer reimbursement for another graduate degree, that might be the better option.
With that balance, I assume you're maxed out on subsidized loans and $1,500 is probably be less than the annual interest that would accrue during repayment (assuming $46k in subsidized loans and interest of 8%, taking that $1,500 worth of classes will save $3,680 in interest for a net gain of over $2,000).
While people may question the ethics of staying in school to obtain perpetual deferment, I don't believe it's an issue given that the goverrnment provides for it and in the case that someone is actually taking and succeeding in classes. Then if there was still some money for partial payments after the classes, that money could be used to pay at least part of the accruing interest on the unsubsidized portion of the loans (up to $2,500/year of student loan interest is deductible, even on the short form). The tuition is also eligible for the Lifetime Learning Credit, which will help a little more on taxes. You could then pay down your other, higher interest debt to free up cash flow to be able to make the required payments on your selected plan in the future.
In any case, consolidating to get the payment down is a good idea, even if deferring. Choosing the plan with the lowest payment no matter if you intend to pay more might be useful because the payment of the the amount that shows on the CR. (If your loans are old, you may have to consolidate to be able to get a new loan that would be deferrable with only half-time enrollment.) Also, if there are Perkins loans in the mix, going with the Federal Direct Consolidation Loan if possible (
Federal Direct Loan Consolidation FAQ) preserves the interest subsidy on those during deferment.