Hello,

I wasn't sure where to post these questions so I will start here and then maybe go to the vintage section.
I started to commute to work (20km) each way with my carbon road bike, but I wanted to get something dedicated for commuting, i.e. fender and racks. My budget is $1000 cdn. I started looking at ebay/craigslist/kijiji and came across so steel bikes.

Marinoni 54cm | de route | Ville de Montréal | Kijiji

Being close to Marinoni shop I called and they said they can repaint for $250. Can I replace the group on this bike to something more recent? Tiagra/105?

Are the upgrades with it on this frame or should I just get a new aluminum frame?

I came across this, which I love but the price $3000 is over my budget and more expensive than my carbon bike.

Sidero (13) - Frame Types - Guru Bicycles

Thanks for looking and suggestions
Nassa