Get it as white and bright in there as you can, mostly for the publicity shots with the wide-angle lens.If the OP doesn't have the skills, I doubt he could get the jobs done for outlays small enough to make the numbers work.

It has a double wide mobile and a 6500 sqft old paint factory on it.

Both buildings have hedges that are planted into planters that are 12"-20" wide and wrap around the entire perimeter of each building.

Do a ramp entry, wide doorways for all doorways, wide or no hallways to accommodate a scooter or wheelchair. 

I was thinking 60ft wide but keep wondering if 70ft would be better.

You just have to keep your eyes wide open and jump fast when something comes available that you want, because the market moves very fast.

And add the political climate, with rent control state wide now in Oregon and possibly next in California. 

La Quinta, on the other hand has few if any regulations city wide, but all the HOAs usually severely restrict STRs and those HOA rules can change even month to month. 

For my having a wide open use like MF to Warehouse limits the cost estimation.

It seems too low, so as a double check, I just looked at MLS for active SFR listings county wide.