Vintage Peugeot conversion help and tips please

...It's currently sporting Cinelli stem and Cinelli criterium bars, Sachs Huret Rival rear mech, Mavic Module E 700c rims, Nervar cranks, simplex shifters, weinmann brakes, 105 levers.

Can't for the life of me match the spec and frame decal colours to anything from the catalogues. Red frame with black decal never seems to occur. Always white decals. It's possible parts have been upgraded along the way. I'm not going to argue to cinelli bits hanging off of it...
That style of Peugeot logo and the "rainbow" decal scheme date it to between 1984 to 1988.

Have a look at the hubs, Maillard were common OE and use a plain date code of two groups of two numbers, with the first group being the week and the second being the year.

Obviously the Cinelli cockpit isn't original, but everything else could be. However, if the 105 levers were OE then you would expect to see Shimano throughout, so I think they were an upgrade.