Reasonable for whom? The pilot or the owner?
Being a single person youŽd have to look at roughly 50% taxes and mandatory insurances off the salary. I would guess that a 'going' salary in that category would be in the 4000-6000 range before taxes, bear in mind that there is a strong slope downhill from south to north and west to east in salaries and obviously depending on age and experience and if there are additional duties, how much standby etc.etc.)
As I live in the southwest, that figure might be less in the the northwest or even lower in the northeast.