Don’t be ridiculous. I would trade 10 for him without a second thought.
The OP offer is bad but don’t double down.
Habs wouldn't trade 10 for Caufield any more than 2nd for Caufield from your angle. Truth is usually in the middle and Caufield has 53 goals in 123 games (35/season prorated) which includes the games with Ducharme as his coach at the 1st half of 21/22. In his last 83 games with MSL, he has 48 goals.
Tricky part with Fantilli is he has not turned pro yet. Who was more hyped? Fantilli or Byfield? I'm just as high on Fantilli as others but sounds like several fans are considering a guaranteed franchise center hit before he has played one NHL game. Odds say he will be very good but watch the defenders come along to nit pick now... Their narrative will be it's impossible for Fantilli to disappoint.
Teams just don't trade top 5 picks and I don't recall the last time a top 3 pick was traded. Interesting to talk about but it's just not happening.