67 c10 drive shaft

[JCCAT]

Hi all, I am new to this site and posting my first thread. I am "restoring" a 1967 c10 long bed small window PU and have a problem with the drive shaft. The shaft is in 2 pieces with a carrier bearing in the middle. The "knuckle" just to the rear of the carrier bearing is no good as the u joint was bad cause someone had welded one of the u joint end caps in place vice using a spring clip. After finally getting the u joint off, the knuckle is not usable. The auto parts stores say they don't carry the knuckle but I did find a place that can special order me one for $130. Does anyone know of a cheaper one or can I maybe replace that shaft portion of the same length and then use a "regular" knuckle, assuming the u joints cap diameter is the same as the old? Thanks for any help. NOTE: the engine was replaced with a 350 and it has a turbo 3 speed automatic transmission. I don't know if the rear end and drive shafts are original or not.