i am just curious why you wouldn't just do a real 5 lug conversion off of a s14? the brakes are the same so your rotors should bolt up. I know that my s13 rotors bolted on my s14 hubs. as for price the 5 lug conversion is about the same as those spacers...

hubs- 50 - 100
the stupid bolt spacers for the front - 40 bucks
the s14 ball joints - 35

thats the fronts. my backs were already done so i dont know how hard those are...