Decision: 5x4 (SBP) or 5x4.5?

nice looking car. You didn’t have to change lower control arms to convert them, unless you just wanted refurbished ones ready to go.... you are right, sometimes rounding stuff up is a pain. When I do project like that I get everything I need prior to starting. When getting used spindles I always try to make sure they give you the dust shields, bolts and caliper brackets if they have them available. The rest can be bought new easily.

now that you’ve done the conversion you can get parts for them just about anywhere which is a huge plus.

I had mostly everything, but still got some new stuff and changed my mind a couple times on what I wanted. LCAs I had, but redid the entire suspension with new bushings. Then these ones I'm cutting, tightening and rewelding so there is no play in them. The only thing I didnt get were adjustable strut rods and torsion bars. Save those for a later date.

But yes just buy a new kit if you want easiest, most likely most reliably complete, and same $$

Then enjoy the chit out of the car driving it as much as possible. Then ask questions and advice from the smarter people in FABO, follow advice, rinse and repeat.