Strange logic indeed, if money was no object, then,why not purchase the equipment to properly apply the paint? Using electrostatic equipment results in very minimal atomization. It is impossible to obtain the specified top coat thickness using rollers.
Use of rollers does not exempt nor minimize the health hazards associated with polyurethane topcoats. The main hazard is that they all contain isocyonates, not carcinogens as previoously posted.