A lender would likely approve you up to $278,984
On $82,000 of gross income with $550 of existing monthly debt, the 28/36 rule supports about $1,910 a month toward housing. With $58,000 down at 6.65%, that reaches roughly $278,984 — a $220,984 loan at 20.8% down. Your resulting debt-to-income ratio would be 36%, and you are currently limited by the total debt.