Go to mousesavers.com for all the info you will need.
Using their info I joined the Emerald Club (National) for free, got discount codes and coupons .... $187 intermediate car for 8 days, RT MCO.
The Emerald Club allows your spouse to also drive the car at no additional cost.
Also recommend checking with your credit card company (the card you will use) to see if you have rental car coverage (especially Loss of Use) and also your personal car insurance coverage. I've checked to make sure I have coverage under both and feel comfortable declining additional insurance that the rental car company offers.
So my amount is without any additional insurance coverage because I have coverage thru CC and Car insurance policy.
Good luck ... book something now and then continue to check back.