I always say, "When you get confused, go back to the basics."
Here is the reg:
(viii) Ineligible businesses. A business engaged primarily in one or more of the following activities may not be treated as a non-listed business for purposes of this paragraph (d):
-serving as financial institutions or agents of financial institutions of any type;
-purchase or sale to customers of motor vehicles of any kind, vessels, aircraft, farm equipment or mobile homes;
-the practice of law, accountancy, or medicine;
-auctioning of goods;
-chartering or operation of ships, buses, or aircraft;
-gaming of any kind (other than licensed parimutuel betting at race tracks);
-investment advisory services or investment banking services;
-real estate brokerage;
-pawn brokerage;
-title insurance and real estate closing;
-trade union activities;
-and any other activities that may be specified by FinCEN.
A business that engages in multiple business activities may be treated as a non-listed business so long as no more than 50% of its gross revenues is derived from one or more of the ineligible business activities listed in this paragraph (d)(6)(viii).
I would say that none of what you have described fits any of the above. I would exempt them if you so choose AND if you have determined that the activity is not suspicious.