I am bringing my van in to a local VW shop to convert from R12,
replace the compressor (there is one leak in the system at the
compressor - but that is getting replaced anyway). The shop indicated
that they'll have to have some AC lines fabricated as part of the
install, which leaves me wondering...

The existing AC system goes from compressor in the rear to condensor
in the front then back to an evaporator in the rear. Since the BEHR
unit has its own internal evaporator wouldn't the AC line just T off
of the existing lines coming out of the evaporator? Is there any
reason that new lines would need to be run back to the compressor?

Thoughts?
Chris