It's likely not the best way to make a lot of money, but I feel that it is better to do something within my current capabilities instead of getting over stretched beyond my limits and get into trouble.

you can use retirement funds as reserves as long as you have the ability to borrow or withdraw against it. you'll have to provide the account guidelines from the holding company to show what access you have. for example my USAA IRA allows me to borrow like 50% max (think) so they will allow 50% to go towards my reserves. 

However, insurance is limited because it only protects you from one type of liability: accidents/negligence.

As of right now we are heavily focused on being debt free so we are limited with cash.

However, insurance is limited because it only protects you from one type of liability: accidents/negligence.

This is a limiting belief you have about yourself that you need to get over. 

Compared to an IRA, Solo 401k contribution limits are roughly 10 times higher and there is no custodial requirement for the 401k.

However, insurance is limited because it only protects you from one type of liability: accidents/negligence.

Liability risk management for me involves an "onion layered" approach.Layer 1: Know the law, follow the law.Layer 2: Respond promptly and professionally to legitimate repair requests.Layer 3: Properties held in Limited Liability CompanyLayer 4: Carry adequate liability insurance. 

Some people still have limited plans and your text could cost them money.