We all started somewhere... your terminology along with photos works just fine.
I'm not a fan of wheel spacers unless absolutely necessary, and the situation would have to be pretty dire to justify 'necessary' on a steer axle. Along with that, have you mocked up the fender to see what kind of clearance you might have to the body work at full lock with the suspension compressed? You may not have the room to physically allow a spacer to work.
Your second option of a replacement spindle/wheel hub bearing assembly sounds like the best option if you're absolutely set on those wheels. But that suspension was designed to work as an assembly. Any deviation could cause undesired performance issues. Take a minute to research bump steer and death wobble. Both occur when the suspension, as designed, is significantly modified outside the original parameters.
Third option is to get wheels with a center that fit the already engineered and installed suspension. You still have the option to bore out that wheel center to make the wheel fit the spindle, but you may lose that center cap. Sometimes the way you need to go is not the way you want to go. Something definitely has to change.Wheels are the easiest way to change the personality of a vehicle, and it's something that thousands of people have done already. I think I'd move those wheels along and locate another set.
