I am looking for some more input if possible on the parts I have, and the parts I would need to successfully make the 12 inch disc conversion complete. This is what I have so far, please feel free to add to the list.

Parts I have.
Spartan Complete Upper tubular A arms (2)
Spartan turn down ball joints (2)
12'1LE IROTORS (1988-1992camaro)Rotors (2)
Calipers loaded w/z28 pads(1970-1976 camaro)(2)
Spindles (tall larger outer bearing.850) (2)

Parts don't have
Tie Rods, where and how much (?)
brake line (?)

-Outer tie rod ends, ‘84 Buick Regal 2 x $12= 24
-Tie rod sleeves ‘71 Chevelle 2 x $5 = $ 10
-Inner tie rods ‘71 Chevelle (’70 has smaller threads) $ ?
You can use ’78 Camaro hoses and Banjo bolt Auto Zone # 313935 which is .9” long. if you still have the drum brake hose-frame brackets. if you had the disc frame drackets then just use the factory chevelle disc brake hoses.

Here's the parts I used for a complete front end rebuild:

Lower Ball joint K6145 801-10277 260-1130 12479-00644 (Needs to be "turned" by machine shop to fit in lower A arms)

Tie Rod Ends 77-88 Chevy ES2033RL ES2033R
Idler Arm K5143 18634 FA443

Inner tie rod ES681N (x 2) 802-681 269-2274
Upper Ball Joint K5208 (x 2) 10268 FA688
Adjustment sleeve ES2032S (x-2) 802-2032S 269-1126

Tie rod end Monte Carlo 78- up ES2033RL 802-2033R 269-2444

Upper Control Arm Shaft set. ( not needed if you go tubular upper A arms ) This is the "Problem Solver" shaft set that allows additional positive camber adjustment K5250 1512353-R 9457 80066 11911 MOOG

Greasable Sway Bar Bushing set (1-1/8 sway bar) 9.5164 Energy Suspension

End Link Grommet Set (1-1/8 sway bar) 9.8118G Energy Suspension

Steve