If I set up Solo 401, can I still have my existing SEP IRA, or do I have to do roll-over.

I want to use my IRA and do a 60 day rollover and put the money back in the IRA before 60 days to avoid early IRA withdrawal penalties. .

If so, and you can find time to start a side hustle that can generate some income (even if $100), you can rollover your pre-tax IRAs/401k into a self directed 401k.

You do not just have to roll over and take it from the insurance companies.  

Looking for advice and suggestions for a Roth IRA Custodian I'm looking to roll over a traditional IRA to a Self-directed Roth by the end of the year, and use that for my investing.

Repeat the process to earn a $73,375 gain, which you roll over once more to end three years with about $174,000 and a 348% return.

Follow-up to your reply. because it is a direct IRA rollover.

I have a mid-term rental in Southern California near the beach that is consistently losing money each year. It is worth approx $1.1 million and I would net approx 500K from selling. I plan to sell it and roll the fund...

So, in your considerations, I would park right there for a bit and determine how this would look for you.Since you have about 2.5 years to think about it before you would need to spring into action to take advantage of the rollover for tax advantages, maybe you try on a rental and see how it fits. 

So either you pay for the repair out of the idle cash in your account, file an insurance claim and use those funds, or rollover/transfer funds from another retirement account to cover the cost.