Sounds like your scales might be out then, apparently the RS has a frame weight of 1050g for the 54cm and the 3T forks (Funda's??) are very light too so I would expect 7.5kg easy.
Even though my Raleigh frame is a relative leviathan I managed to accquire NOS Dura Ace 9 speed in dribs n drabs plus I have Vittoria Ultraspeed tyres, those plus the tubes come to only 440g. The wheels are the older Ksyrium SSC which are a little less than the Sciroccos plus I have ti skewers which are 45g the pair. EC90 bar & TEC stem, 340g the pair. A 90mm ITM Millenium stem comes in around 125g and are easy to find cheap but I guess you have oversize bars. I was tempted to buy a titanium bilet 9 speed cassette 12-21 that weighed only 99g but thought that was just silly for the 55g weight saving
I have a Syncros ti seatpost and silly lightweight velo saddle.
MY FRM headset was only 90g too so that too saves a few grams. My total spend was £700 after taking into account all the original bits I sold off, I guess I just got lucky.
Certainly I could buy much lighter wheels but as you say for the price of a really light set you can buy another Italian Steely I know which I'd rather spend the money on
Still, which is the nicest to ride overall or that you appreciate/look after the most? The money spent isn't so relative if the one that cost you the most brings you the most pleasure.
Well the Cervelo is like silk to ride, 40 miles non stop on the last sportive and I didn't even need to stand on the pedals to ease my butt! and the super stiff BB pays dividends in sprints etc, The Olagnero ( Columbus Aelle )has bags of character tho, joy to ride from day 1 and all I've done is ditch the bio-pace rings for stronglight 53/39s, new BB and brake cable plus a bit of bar tape and cheap contis )...the Rossin I have 'touring' gears 14-28 on the back and it's been a bit of a labour of love, complete wheel rebuild DA rear mech, DA crank waiting to go on, restored orinal paint, NOS 600 brakes, DT shifters....a real head turner, but I'm thinking of letting her go as i've spotted something nice with lots of old Campy on it
I guess we're really spoilt having such great machines to enjoy, the Cervelo was the result of a legacy, I would never normally go so nuts but it was special situation...
Colnago Super, C record Delta 7v,
Olagnero Signature Model, DA 7401
Battaglin EL101 tubing 8v
Wilier Campagnolo 8v Record
Daccordi Furioso, Campag Veloce 9v