Yes, yes, yes, yes!! That is a great collection. I especially like the De Rosa Team "Sanson Campagnolo" and Zenon Jaskuła's bikes. Is the TT on De Rosa slightly slopped or is it just the photo?
Campagnolo Record/Racing Triple groupset alone would be worth more then 80€ if it’s in good condition. If the frame was fitted with a racing groupset it’s probably a good quality frame. Watch out for flaws in the carbon (cracks and alike) and oxidation around carbon-alu junction.
I understand the luck of necessity for rear damper as well as complexity of designing such frame.
Are you going for a front suspension fork with a crown moved forward (as opposed to being in line with the head tube)? I have very little experience with mtb, Hopefully you know what I mean. ;)
Haven't you just built a badass commuter GT?
Yellow bikes are great, cheerful and this Cannon looks like fun :)
Ohh, and are you going for a drop bar? please say no