Killing Puppies?

if the wheels are 700c then you should be ok.
the peugeot rear hub spacing is 126mm, you may have to spring it out for a 130mm hub..

carbon forks:

you need some with a 1" steerer and will have to change the headset.

by playing about with a few headsets it is possible to use a 1 1/8" fork in a 1" frame.