Your wisdom and your wealth have to be in unison.
If you are rich then save the money on the inspections.
If you are not rich, hire an inspector with a certification and a license and if something happens you have someone to help you bear the costs.
This old phrase comes to mind: A dill and his dough are often soon parted.
Bottom line, its a gamble, just like the rest of life whatever you do will be a rolling of the dice.