I ran your numbers through the calculators and came up with a annual premium for a silver plan with a 94% actuarial value based on a MAGI of $22,000. The premium would be $775 per year and additional cost sharing would limit additional outlay to $600.
If instead you have a MAGI of $50,000 and go with a bronze plan, your premium will be $3,145 per year and only have a actuarial value of 60%. Your additional outlay could be as much as $15,000.
So...sell the house and rent, keep the money and use it to control your MAGI to $22,000 and pay a maximum of $1375 a year for health insurance
OR...keep the house, pay real estate taxes, maintenance, and draw from your investments with a MAGI of $50,000 and pay a maximum of $18,145 per year for health insurance.
$1,375 vs $18,145