I snagged a Celest green 58cm Bianchi Limited off CL. It appears to be all original with Shimano 600 everything. It is made in Italy and in pretty good shape. It needs nothing to ride and I have already ridden it without needing to do anything besides fill up the tires. It has Ambrosia rims and Shimano toe clip peddals with Celest leather straps and Celest bar tape that is in great shape (prob been replaced at some time).
I bought it because I always wanted a Bianchi and it was my size but after riding it, I am not sure I am in love with it like my Nishiki International. It is a better bike but feels so serious to ride.
I might put it on Ebay or CL and sell it. What are people paying for these now? The seller said they paid $756 for it new in 1988.