drop spindle for 1" SD rotor???

[Ciddy]

this is my first c10 & first v8. i got a 69 swb and a 67 front end(i like better) for $900. the PO did a 5lug on 4 3/4 conversion with SD 1" rotor disk brake conversion up front.(CCP part# 6770CBK5)
i am on a very tight budget and would like to use this 1" rotor set up, since it came on truck and was never used. i can only find drop spindles that use 1 1/4" rotors or does not specify.
is there any drop spindles that will accept my 1" rotor?




454 to be rebuilt and installed