Beneficiary would receive current balance at time of death IAW Roth IRA rules.All sounds good but I’m not familiar with Athene’s possibly non stock investment vehicles.  

You can increase your net worth by investing in assets that appreciate instead of spending your money on vacations, expensive vehicles, designer clothes, and other luxuries.Cut unnecessary expenses: Many people spend more than they realize on daily expenses like eating out, buying coffee and snacks, unused subscriptions, and other things.

Should I open a separate HYSA or similar vehicle to park additional cash reserves and or taxes set aside from prior projects?

There's not much to build with these properties.One metal building for lessees to repair their vehicles. 

So you are just choosing one retirement vehicle over another.You can also consider rolling the 401K into your new employer and take out a 401K loan if your employer offers the option.You would normally be eligible to take a loan of the lessor of $50,000 or 50% of your vested balance which would be $4,500.Best of luck

Personally, I tend to see it more with my clients when they are buying vehicles as they are scaling (crushes DTI/FICO in the short term), but that sucks that its impacting what you can do with your family.

Like vehicles  airplane or equipment for your contracting business .. or real estate with its bonus depreciation but its going down and not as attractive as a few years ago for sure.   

There is not much tax advantage to buy property in that vehicle especially at an accumulation stage.

California does not recognize series LLCs.Additionally, you'll want to consider long-term planning and whether a vehicle of that type does anything for you in terms of inheritance & estate planning, including property tax savings.These are all things you will want to discuss with your attorney and CPA.

Most electric vehicles are owned by homeowners, not renters.There are approximately 1.3 million renters in New Jersey.