New Roof, New Windows, Paint interior/Exterior, New Appliances, New Garage Door, New Fascia, New Fixtures (Bathroom and Ceiling fans), Electric Service Upgrade, 1204 Sqft, built 1960.

There is no 2 year window that current value can establish the TOD value.  

Windows would be my next check-point (less than R1) and then wall insulation: I would not be surprised if they have no insulation inside, but you can do blow-in, which only requires a small hole.A home looses heat in two ways: heat conduction (which you can slow down with insulation) and drafts, which in old houses is usually the biggest culprit.

Estimated cost for remaining changes (all new electric, drywall, tile, fixtures, cabinets, roof, doors, windows, heat pump, some siding, and fencing.

If you're not resident in Japan, you can't borrow from Japanese banks, and so that's out the window. 

My secret is I use the one-hour window to allow cancellation.

It has some updates: windows, exterior paint, plumbing.

She once threw a full 40 ounce beer through the front window on the house.

This has pluses and minuses.If your property is bulletproof such as no framing - cinder block construction, cement floors, gloss white paint slapped on the walls and a cheap window mount AC, then you are in a prime position to make money with S8. 

This is a penalty window where selling or refinancing out of the loan would cost you 1,2,3,4, or 5% of the amount you owe on the property as a penalty fee.