Insurance rates are based on the risk of someone getting into an accident. Since your fiance is legally blind and has a speeding ticket, his rates are going to be higher because of the elevated risk that he would get into an accident.
As long as your husband is going to drive the vehicle and park it as his residence, he can insure your car under his name and policy. Because you own it, you would need to be listed as an additional interest in the policy.
Her best bet, because of her age and high cost of insurance in Florida, would be to get added on to a family member's policy of the household where she lives. Once she has been insured for at least 6 months she should qualify for lower rates because of the discount for being continuously insured.
Tickets that impact your auto insurance rate are generally moving violations, so you probably don't have to worry about this showing up on your driving report. The exception would be if your drivers license was suspended because of the ticket, but the suspension is what would impact your rate and not the ticket itself.
Our State of Insurance Report actually shows that the average premium in Wyoming of $1176 is below the nation average of $1323 per year. Since rates are partially based on the number of claims and damaging whether events in certain areas, it's possible that your rate is being impacted by things that are out of your control.