I’m not new to Zillow, I’ve sold many properties there FSBO but this is a new one: Buyer appears to be a land speculator, I docu-signed a contract to sell a vacant lot and thought nothing about them asking for a 14-da...

This would be a non arms length prohibited transaction and would potentially result in the entire IRA being distributed is my understanding...the only way this could be possible is if the OP is or becomes retirement age in the next two years.

Some people want to grow as much as possible and maximize all the opportunities while others are fine with a few deals.Remember all you know is what you know but Its what you don’t know that makes the biggest the difference. 

That entire structure was originally a 3/2??

while it’s always possible to structure scenarios where you are both a broker and a principal, the APPEARANCE can be one of impropriety.  

Sure, it's possible.

I do know of a few that could help, just sent a DM.Also 100% agree with @Bill J Fay, being up front about costs and region will help as much as possible going into a tricky deal to try to lessen any potential 'surprises'.

Again, I'm not asking you to be their entire solution.

While this option may require permits for the renovation work, it may be a simpler process compared to replacing the entire home.Ultimately, the decision to replace or renovate the mobile home will depend on your budget, timeline, desired level of customization, and future resale value.

I've been wondering for nearly two decades how famous people survive when their birthdays and entire life story is available on wikipedia.