How many engines is too many?

[Missingbadly]

Hi had a scout round at the weekend prior to putting a WW2 Dodge up for sale and tried to defend the allegation from Mrs Badly that there would still be too many vehicles. I obviously don't think so, but when I counted up how many engines there are (cars, spares, mowers etc) its 19.
Is this normal?
Is it also normal to have had skinned knuckles on every one?