Last I checked I found no kits for the 7M-GE. There are kits for the 7M-GTE, but they've got more of the larger diameter hose than needed and are several feet short of the smaller diameters.
This page of the EPC lists most of the hose lengths in millimeters:
Vacuum Piping
This page lists some of the others which are in both models and covers which sizes are used where pretty well:
Cygnus X1 Home Page
4mm and 3.5mm are the sizes you'll end up short on if you go with a GTE kit.