HELP NEEDED!! IDENTIFYING LATEST EBAY PURCHASE 531, CAMPAG

[Bananasplit]

Hi morning all, I would really appreciate your help on trying to identify my latest edition. Recently purchased from ebay, the bike is laden with some decent components but I draw a blank at the frame and fork.
Component list includes:-

Mavic open 4 cd rims, Campag record high flange hubs, spokes unknown
Athena rear mech
Campag front mech, model unknow
Chainset unknown
Cassette unknow
Shimano 105 headset
Cinelli stem, model unknown
Cinelli bar, model unknown
Shimano exage brake levers
Shimano sis down tube shifters
Campag seatpost, model unknown
Brakset Modo Speedy

This frame does have a serial number stamped into the bottom bracket, which is S901033??
Please have a look at all the images and add any input you may have.

 

[Bananasplit]

Re:

More pictures added.

 

[Midlife]

Looks like a late 70's early 80's 531 frame, Prugnat long point lugs, Cinelli MC semi sloping fork crown. Nutted brakes General purpose with mudguard eyes. Mixture of kit including what look like 1970's Sugino "Mighty" drilled chainrings.......

Shaun

 

[KermitGKona88]

Re:

Cranks are Ofmega Super Competition

http://velobase.com/ViewComponent.aspx? ... AbsPos=172