I did sacrifice regular exercise, any weekends away, and my wife adapted and supported.  

If it were my house, and the house was ready to go but for the outlets, I would replace the 3 prong with 2 prong, and include (or let the tenant buy) adapters.

I like the KISS method too, a simple check list or point system adopted could place a neighborhood and dwelling within a better defined classification that would be adaptable anywhere in the country.

Another alternative if you need to plug something in is the 2 prong to 3 prong adapters which are only about $0.50 or you could rip off the ground prong from a surge protector.  

Find an architect that is experienced in Adaptive Reuse and knows the local planning code and have them render an opinion if this property is viable for Adaptive Reuse. 

The key has been to adapt.

The legal definition of Fair Market Value under California law is found in the Code of Civil Procedure, Section 1263.320, as follows:"The fair market value of the property taken is the highest price on the date of valuation that would be agreed to by a seller, being willing to sell but under no particular or urgent necessity for so doing, nor obliged to sell, and a buyer, being ready, willing, and able to buy but under no particular necessity for so doing, each dealing with the other with full knowledge of all the uses and purposes for which the property is reasonably adaptable and available.

Charles Darwin said that it's not the strongest or the smartest of the animals that survive but those who are fastest to adapt to their changing environments.

They won't be limited to buying at 65% or 70% ARV.Always look for opportunities and be prepared to adapt to changing circumstances.

We have learned to adapted.