An MSP is a stack, a roster, and a set of people who already pay

Managed services buyers look at toolsets, technician coverage and contract terms. They can live with imperfect books. They cannot live with a mystery about who actually does the work.

If you are the after-hours number, say so. If two technicians could run it with a proper owner, say that too. A private sale is where those facts belong, not in a glossy brochure.