Storage possibilities
There seem to be a lot of storage possibilities.
It would help if you had a list of specific must have and must not haves.
For example, do you want storage adjacent to a shop that has expertise with E9's (like Mario's in NH)? Or do you just want dry and secure, but easily accessed from Boston?
Do you need 24 hour in-out access or do you mind making an appointment?
Do you need working/storage space for the car and parts, or is it just car storage with nothing special?
How about KTR out in Ayer (lots of my classic car buddies keep their cars out at KTR). these extremes? There are other BMW specialists that have some limited car storage around the Boston metro area.
So, let us know your priorities.
John