I'm posting this for my Uncle who owns the car and did all the restoration.  He is ridiculously picky about the level of perfection that he puts into cars and has helped with other isetta restorations.

I don't know the year, or any other 'normal' details.

I do know that this car sat in my Grandpas barn (non-animal barn) since probably before I was born, then we moved it to my dads shop (dry and heated) then it went to my uncle in the early 90's.

I would venture to say that this will be one of the most perfect restorations you will see.  

He is asking $45K.  At a concours type auction it would probably get low to mid 50's

If you or someone you know is genuinely interested, I can get you in contact with him.